# Logical Series II- Numeric Series in Logical Reasoning for IBPS PO Exam

### There is no running away from logical reasoning questions when you want to crack competitive exams like IBPS PO Exam. Questions on Numeric Series can be very scoring if approached the right way.

Logical Series are of many kinds, and questions on most of them are asked in IBPS PO Exam . Honestly, the logical reasoning section is not very difficult but what makes it very challenging is the limited amount of time that you have to solve these questions. In the previous post about reasoning question, Logical Series I- Logical Reasoning Questions for IBPS PO Exam, we discussed logical reasoning concepts that involve a series of mathematical operations. In the second article in this series, we will once again discuss logical reasoning questions, but those that involve number series.
It is would be a great idea to go through the concepts used to solve logical reasoning questions on mathematical operators before you move to logical reasoning questions on numeric series.

### Set I –Numeric Series Based Logical Reasoning Questions

In such reasoning questions, there are a series of three digit numbers followed by a question. The questions are based on logical reasoning and need you to follow some simple steps to get the answer.

Problem 1: If the position of the first and the third digits in each of the numbers are interchanged, which of the following will be the third number?
1) 851           2) 743           3) 624           4) 319           5) 298
Solution 1:
The 1st and the 3rd digits of all the five numbers have to be interchanged, doing that we get-

Once we have all the numbers we can arrange them in the descending order-
From the above table, we can conclude that ‘426’ is the 3rd highest number which is obtained from ‘624’.

Therefore the answer is Option 3- 624

Smart Solution:
Reasoning questions of the same kind can be solved by a quicker method by using a very simple concept of logical reasoning.
The simple logical reasoning trick this question being that once the 3rd and the 1st digit are interchanged, the 3rd digit actually becomes the 1st digit.
We know a number is higher or lower based on the digit at the hundreds place, as these are all three digit numbers.
So from all the digits in the units place, whichever is third highest, will be the answer. So we arrange them in the descending order-
So the third highest number is the number with 4 in it, which is 624.

So by this method, most of the steps involve logical reasoning will actually be done mentally and you will have to write almost nothing on the paper and will reach the correct answer in less than 5 seconds!

Problem 2: If in each of the below numbers, the digits are arranged in ascending order, what will be the sum of the middle digits of all the numbers?
1) 19           2) 14           3) 17           4) 21           5) None of these
Solution 2:
So we need to start by arranging the digits in the numbers in ascending order, so all the numbers now become-
Now we have to add their middle digits-
2 + 4 + 2 + 6 + 3 = 17

Therefore the answer is Option 3- 17

Smart Solution:
Using logical reasoning smartly, the same question can we solved by writing negligible steps and doing most calculations mentally.
So we need to start by just identifying the 2nd highest digit in each number and then adding them-
2 + 4 + 2 + 6 + 3 = 17

### Logical Reasoning Practice Questions on Numeric Series

Question 1: If in each number, the digits are arranged in ascending order, what will be the sum of the middle digits of each of the numbers?
1) 14       2) 12       3) 26       4) 17       5) None of these
Question 2: Which of the following numbers will be obtained if the second digit of the lowest number is added to the third digit of the highest number after adding 4 to each number?
1) 5       2) 6       3) 7       4) 8       5) None of these

The comment section is waiting for answers, and also remember to download our free e-books with practice questions because “the more you practice, the better you get!”

# Logical Series I- Logical Reasoning Questions for IBPS PO Exam

### Logical Reasoning Questions are an inseparable part of IBPS PO Exam, therefore as an aspirant for these jobs, it becomes almost mandatory for you to get command over this topic.

Logical reasoning questions from logical series are not only fun and challenging but also an integral part of exams like IBPS PO Exam x. With a little practice and knowledge of few hacks, logical reasoning questions can be solved in just a few seconds! They are pretty much capable of making a difference to your score and taking you through the cut-off. In a two series blog post on logical reasoning questions, we will discuss logical reasoning questions that are based on mathematical operators and those reasoning questions that are based on number series.

Before we start discussing logical reasoning questions based on mathematical operators, you must go through the 5 tricks that will help you maximize your score in the logical reasoning section.

### Set I – Mathematical Operations Logical Reasoning Questions

Of the various kind of logical reasoning questions asked in IBPS PO, SBI PO and SSC CGL, the most commonly asked ones are about mathematical operations. Such logical reasoning questions need you to perform various mathematical operations based on the conditions specified to get to the answer.

Problem 1: If A is followed by B then C-
Question 1:
If P is the resultant of the first row, what will be the resultant of the second row?

Solution 1:
Based on the 5 conditions that have been given, we have to find the resultant of the 2nd row. To find the resultant of the 2nd row, we first have to find the value of P, which is the resultant of the 1st row. To find the resultant of the 1st row, we have to do nothing but simply follow the conditions and perform the required mathematical operations.
15 is an odd number, so we refer to conditions (i), (iv) and (v), since 8 is an even number we will refer to condition (v).
So we need to subtract 8 from 15-
15 – 8 = 7

Now the next pair of number we have to deal with are- 7 and 21
7 is an odd number, so we refer to conditions (i), (iv) and (v), as 21 is a composite odd number we will refer to condition (i).
So we need to add 21 to 7-
7 + 21 = 28
28 is the resultant of the first row and the value of P.
Now we move to the 2nd row with the value of P as 28.
28 is an even number, so we refer to conditions (ii) and (iii), since 3 is an odd number we will refer to condition (ii).
So we need to add 28 to 3-
28 + 3 = 31

Moving on to the next pair of numbers- 31 and 27
31 is an odd number, so we go back to conditions (i), (iv) and (v), since 27 is an odd number we will refer to condition (i).
So we need to add 31 to 27-
31 + 27 = 58

Therefore, the answer, the resultant of the 2nd row is 58.
This how logical reasoning questions can be easily solved by just following the steps.

Question 2:
If r is the resultant of the first row, what will be the resultant of the second row?
Solution 2:
Based on the 5 conditions that have been given, we have to find the resultant of the 2nd row. To do that we first have to find the value of r, this is nothing but the resultant of the 1st row.

Starting with the first two numbers- 85 and 17
85 is an odd number, so we refer to conditions (i), (iv) and (v), since 17 is an odd prime number we will refer to condition (iv).

So we need to divide 85 to 17-
85 + 17 = 5

Now the next pair of numbers we have to deal with are- 5 and 35
Once again 5 is an odd number, so we refer to conditions (i), (iv) and (v), since 35 is a composite odd number we will refer to condition (i).
So we need to add 5 and 35-
5 + 35 = 40
Since 40 is the resultant of the 1st row, it will also be the value of r.
Now the next pair of numbers is- 19 and 16
As 16 is an even number, we have to use the (ii) and (iii) condition; also since 19 is an odd number, the condition we have to refer to here is (ii).
So we need to add 16 and 19-
16 + 19 = 35

The next pair of numbers is – 35 and 40
35 is an odd number, we have to use the so we refer to conditions (i), (iv) and (v), since 40 is an even number we will refer to condition (v).
So we need to subtract 40 from 35-
35 - 40 = -5

### Logical Reasoning Questions for Practice

Directions (1-2): In each of the following questions, two rows of numbers are given. The resultant numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the questions below the rows of numbers are to be answered. The operations of numbers progress from the left to right.

Rules:
i) If an odd number is followed by another composite odd number, they are to be added
ii) If an even number is followed by an odd number they are to be added.
iii) If an even number is followed by a number which is the perfect square, the even number is to be subtracted from the perfect square.
iv) If an odd number is followed by a prime odd number the first number is to be divided by the second number.
v) If an odd number is followed by an even number, the second one is to be subtracted from the first number.

Question 1: 15      8      21
P       3      27
If ‘P’ is the resultant of the first row, what will be the resultant of second row?
1) 58       2) 76       3) 27       4) 82       5) None of these

Question 2: 12      64      17
20      m       16
If ‘m’ is the resultant of the first row, what will be the resultant of the second row?
1) 69       2) 85       3) 101       4) 121       5) None of these

# Daily Update On Current Affairs - May 31, 2017

### Goa To Ban Plastic From July 2017

The Goa State government has decided to ban buying and selling of plastic bags below 50 microns. Goa has already banned the use of plastic bags below 40 microns. The ban will come to effect July onwards. Initially, violators of the ban will be asked to pay a fine of Rs.500 and subsequently the fine amount would be raised to Rs 5000 depending upon the initiative’s success. The move of the government is aimed at tackling the menace of garbage and litter in public places. Thin plastic bags tends to cause floods by choking the drains and are easily carried by wind and water in flood planes thus increasing the flooding of public places during rains. The state government also plans to simultaneously collect garbage dumped on highways to increase cleanliness in the tourist state.

### India and Fiji Sign MOU

India and Fiji has signed an MoU on defence cooperation after delegation level talks between the Minister of Defence, Finance and Corporate Affairs, Arun Jaitley and the Minister of Defence and National Security of Fiji, Ratu Inoke Kubuabola in New Delhi. The MoU envisaged cooperation in defence industry, military training, humanitarian assistance & disaster management. In particular, Defence partnership as well as the maritime security and naval cooperation were identified as an area of promise. The MoU provides for stepping up of defence and security ties in defence production and military training.

### Southwest monsoon hits Kerala, North East

The Indian Meteorological Department said that conditions are 'favourable' for the onset of South-West monsoon in Kerala by today.  IMD Thiruvananthapuram, Director S Sudevan said, while south Kerala has been receiving widespread rains since yesterday, only few places have received rains in the northern parts. However, it is likely to improve by today. Rain and thundershowers are most likely to occur in most places in Kerala in the next five days. Strong winds from the westerly direction with speed occasionally exceeding 45-55 kmph, are likely off the coast of Kerala over Lakshadweep.

### India and Germany sign several agreements including Cyber security

Prime Minister Narendra Modi has said, terrorism and radicalization need to be contained firmly. Addressing the media along with German Chancellor Angela Merkel in Berlin, he said, terrorism has been a challenge at the global level, therefore countries need to unite to counter this menace. Mr Modi said, India and Germany are moving forward and complement each other in economic development. Earlier, the two sides signed several MoUs and agreements including cyber security and development cooperation for sustainable Urban Development. The Prime Minister said, the fast track mechanism implemented by the Government and specifically for Germany has brought about a quantum jump in economic relations between the two countries. He appreciated the German Chancellor’s vision at global level and also at the EU front. Mr Modi also opined that intelligence sharing was the need of the hour and cyber security was to be addressed by real time technology.

### RBI to introduce new Rs 1 notes

The Reserve Bank of India has announced that new one rupee note have been printed by the government and will be soon put into circulation. The one rupee note was discontinued in 1994 because it was more expensive to produce such notes when compared to the one-rupee coins. In the following year, Rs. 2 and Rs. 5 notes were also discontinued to free up printing facilities for higher denomination notes. However, these old notes continue to remain in circulation and continue to remain as legal tenders. The new Re.1 one will be predominantly pink-green on the obverse and reverse in combination with other colours. The new one rupee note will bear the rupee symbol. It will be 9.7 by 8.3 cm in dimension. The new note will feature ‘Bharat Sarkar’ on its masthead, and ‘Government of India’ printed below that. In contrast all the other currencies in India has ‘Bharatiya Reserve Bank’ and ‘Reserve Bank of India’ printed on them. This is because the one-rupee note has always been issued by the central government.  The watermarks of the Re 1 note will include the Ashoka Pillar, the hidden numeral “1” and the hidden word “Bharat” in Hindi. The note will also feature an image of the ‘Sagar Samrat’ (the oil exploration rig).

### Scope for rationalization of GST rates: Revenue Secretary Adhia

Revenue Secretary Hasmukh Adhia has said, there is scope for rationalization of tax rates fixed for Goods and Services Tax (GST) regime. He was speaking at a townhall meeting with the industry in Bengaluru. Mr Adhia said, the intention of the government is not to increase the taxes but to increase the revenue by implementing GST.  He said, it would bring transparency, simplification and efficiency in tax administration and help in curbing tax evasion and thereby leading to tax buoyancy. The Revenue Secretary said, GST is a major customer-friendly indirect tax reform. The GST Council, headed by the Union Finance Minister Arun Jaitley and comprising of his state counterparts, had earlier this month fitted over 1,200 goods and 500 services in the tax slab of 5, 12, 18 and 28 per cent. GST, which will unify 16 different levies, will come into effect from the 1st of July.

### National Federation of the Blind opposes GST

The National Federation of the Blind has objected to the proposed GST rates on assistive devices, special equipment and Braille papers.  Federation's General Secretary SK Rungta submitted a memorandum to Finance Minister Arun Jataily demanding that these items should continue in the list of zero GST items. The federation representatives also met Social Justice Minister Thaawar Chand Gehlot over the issue.

### Madras High Court stays ban on sale of cattle for slaughter

The Madras High Court today stayed by four weeks the enforcement of the Centre’s contentious notification banning sale and purchase of cattle at animal markets for slaughter. The interim order of the Madurai bench of the Madras High Court came following protests in some states including Tamil Nadu and Kerala against the measure. Under relentless opposition attack, the government, meanwhile, said it was examining “issues” raised by some state governments and trade organisations. A defiant West Bengal Chief Minister Mamata Banerjee had yesterday called the new rules “undemocratic and unconstitutional” and declared it would be challenged legally. Kerala Chief Minister Pinarayi Vijayan had termed the ban “anti-federal, anti-democratic and anti-secular”, and shot off letters to his counterparts in other states asking them to “stand together” and oppose it. He also urged Prime Minister Narendra Modi to withdraw the new regulations. A division bench of the high court comprising Justices M V Muralidharan and C V Karthikeyan today ordered a stay on the execution of the notification on two PILs for four weeks by when it directed the Centre to file its counter-affidavit on the petitions.

### Short-term outlook remains bullish for gold

Gold prices remained steady last week. Lack of fresh triggers kept the prices broadly range-bound for most part of the week. Though the global spot, gold prices fell initially from around 1,263 per ounce, they found strong support at 1,248 and managed to bounce back in the later part of the week. The spot prices had closed in the green for the second consecutive week at 1,266 per ounce, up by about 1 per cent, for the week. On the domestic front, the future contract of gold on the Multi Commodity Exchange (MCX) moved in tandem with global spot prices and had closed the week higher by 1 per cent at Rs 28,888 per 10 gm. Silver, on the other hand, outperformed gold by surging about 3 per cent last week. The global spot silver prices rose above the psychological resistance level of 17 per ounce and closed the week on a strong note at 17.31 per ounce. The MCX-Silver futures contract also surged 3 per cent last week and closed at Rs 40,091 per kg.

### Pentagon successfully tests ICBM defense system for first time

The United States of America has for the first time successfully tested its defence system against an intercontinental ballistic missile (ICBM). The Missile Defense Agency said that a ground-based interceptor was launched at a California air base and shot down a mock ballistic missile.  The Pentagon said the test was long-planned but it comes amid increased tensions with North Korea. The test comes after Pyongyang fired its ninth missile this year. Yesterday MDA Director Vice Adm Jim Syring called the test a critical milestone. It was the first live-fire test against a simulated ICBM for the Ground-Based Missile Defense.

### May 31- World No Tobacco Day

'World No Tobacco Day' is observed around the world every year on May 31. This year World No Tobacco Day, WNTD, is focusing on the theme tobacco as a threat to development. This theme has been set by the World Health Organization, WHO.  The campaign aims to demonstrate the threats that the tobacco industry poses to sustainable development, including the health and economic well-being of citizens in all countries. It is intended to encourage a 24-hour period of abstinence from all forms of tobacco consumption around the globe.  The day is further intended to draw attention to the widespread prevalence of tobacco use and to negative health effects, which currently lead to nearly 6 million deaths each year worldwide, including 600,000 of which are the result of non-smokers being exposed to second-hand smoke. The member States of the World Health Organization (WHO) created World No Tobacco Day in 1987. In the past twenty nine years, the day has been met with both enthusiasm and resistance around the globe from governments, public health organizations, smokers, growers, and the tobacco industry.

### Dasari Narayana Rao passes away, aged 75

Former union minister and renowned film director Dasari Narayana Rao passed away in Hyderabad yesterday. He was 75. Mr Dasari has been suffering from various health complications for the past few months and he breathed his last while undergoing treatment in a private hospital last night. Dasari Narayana Rao’s final rites will be held in Hyderabad today with state honours. Born in 1942 in Palakollu in Andhra Pradesh, Dasari directed 151 pictures in Telugu and other languages and had several super hit films to his credit. He entered into Guiness book of Records for directing highest number of films.

### ‘Super-Earth’ found 21 light years away may host alien life

Scientists have discovered a potentially habitable Earth-like planet, located just 21 light years away, that may host liquid water on its surface. US Scientists found that the planet, with a mass between two and three times the Earth, resides at the edge of the habitable zone of its host star Gliese 625. They said, the discovered planet is a relatively cool star, the planet is situated at the edge of its habitability zone, in which liquid water can exist on its surface. Researchers said, this is the sixth super-Earth closest to our solar system in the habitability zone or in goldilocks zone of its star. Goldilocks zone refers to the distance of a planet from a star means the planet is neither too hot, nor too cold to support liquid water, which is a key ingredient for life.

### US Researchers find new ways to slow down the growth of cancer cells

In US, researchers from the University of Rochester has identified a new way to slow down the growth of cancer cells. The new method, reported in the latest issue of the journal Science, involves a certain protein called Tudor-SN and the gene-editing technology CRISPR-Cas9. The findings were made in kidney and cervical cancer cells in the laboratory and are a long way from being applied to people.

# Daily Update On Current Affairs - May 30, 2017

### Anti-Ragging Mobile App Launched to Fight Ragging

Human Resources Development Minister Prakash Javadekar has launched an Anti-Ragging Mobile App of the University Grants Commission (UGC) to help students register complaints against the menace of ragging in the country. Previously, students were required to visit the website to register a complaint against ragging. The new app will work on the android platform and will facilitate students to register a complaint against ragging instantaneously. Students can login and register their complaints immediately.The complaint will be sent to the concerned authorities for timely action and the action will be initiated immediately. As the records indicate that timely action had resulted in the decrease of ragging instances in campuses. This app is aimed at giving a feel of security to students.

Satyabrata Rout has been awarded Sangeet Natak Akademi Puraskar for the year 2016. He is a professor from the Department of Theatre Arts, S N School of Arts and Communication, University of Hyderabad (UoH). He has been awarded for developing a unique method of teaching and practicing direction and design achieved from his experience working with eminent theatre practitioners and scholars. Satyabrata Rout is considered as one of the pioneers  of ‘visual theatre’ in India. He has a rich experience of directing a number of plays, participating in national and international theatre festivals and conducting a numerous theatre workshops across the globe. The Sangeet Natak Akademi Puraskar (Akademi Award) is an award given by the Sangeet Natak Akademi. The award is the highest Indian recognition given to practicing artists. The award includes a purse of Rs 50000, besides a Tamrapatra and Angavastram. The awards are being presented in the categories of music, dance, theatre, puppetry and other traditional arts.

### Prime Minister Narendra Modi reaches German capital Berlin

In the first leg of his four nation tour to Germany, Spain, Russia and France, Prime Minister Narendra Modi has reached the German capital, Berlin. Trade and commerce, economic cooperation and counter terrorism will be high on the agenda during Mr Modi's visit to the European countries. In a tweet, Mr Modi expressed hope that his visit to Germany will lead to beneficial outcomes and deepen Indo-German friendship. He will have an informal dinner with German Chancellor Angela Merkel in the official country retreat in Berlin tonight. The Prime Minister will take part in the 4th Indo-German Inter-governmental Consultations tomorrow and meet German Chancellor to strengthen bilateral relations. The inter governmental consultations will identify areas of mutual interest in bilateral trade and investment to strengthen their relationships. Speaking to AIR exclusively, Union Commerce and Industry Minister Nirmala Sitharaman said, since trade and investment related agreements of the countries belonging to the European Commission have to be done through it, Germany being a part of the European Union, needs to take up the issue so that FDI  projects from the 27 partners of the Union could benefit.

### Centre launches Darwaza Band

The Centre will launch a new campaign called 'Darwaza Band' from today to promote toilet usage in rural areas across the country. Bollywood star  Amitabh Bachchan, who leads the campaign, will be joined by Union Minister for Drinking Water and Sanitation Narendra Singh Tomar and Maharashtra Chief Minister Devendra Fadnavis at the formal launch event to be held in Mumbai. It is designed to encourage behaviour change in men who have toilets but are not using them.

### Unorganised sector workers to be covered under ESI and PF

Labour Minister Bandaru Dattatreya has said that 40 crore workers from the unorganised sector will be covered under social security schemes such as the Employees State Insurance and Employees Provident Fund. Addressing a function on the three year achievements of his ministry in New Delhi yesterday, Mr Dattatreya said the government is committed to ensuring jobs and social security for all workers including those in the unorganised sector.

### Chemists across country to shut shops today

Chemists across the country will shut their shops today in protest against the alleged stringent regulations on the sale of medicines. According to the All India Organisation of Chemists and Druggists the one-day strike was called as several representations by them opposing regulations on the sale of medicines in the country, submitted to the government, went unheeded. However, emergency service pharmacies in and around hospitals will remain open. The chemists are also opposing online pharmacy, which they claim, poses a threat to their business.

### North Korea fires third short-range ballistic missile defying UN resolution; US expresses strong concern

North Korea has fired third short-range ballistic missile defying the UN resolution. It is the third apparently successful test in as many weeks. South Korea's military says the missile, believed to be a Scud-class ballistic missile, was launched from North Korea's eastern coast and flew nearly 450 kilometers before landing in the sea. US Defense Secretary, Jim Mattis has expressed strong caution about the capabilities of North Korean missiles. In an interview with a Television channel yesterday, he said US assumes that North Korea is getting better with each test. He called North a direct threat to the United States. He took a cautious stance toward taking military action, saying a military conflict with North Korea would probably be the worst kind of war in most people's lifetimes. He stressed the need to continue seeking a diplomatic solution.

### Devastating floods in Sri Lanka claims 164 lives

The death toll from devastating floods in Sri Lanka has risen to 164. Disaster Management Centre, DMC, today said the Rescuers have pulled out more bodies buried in the mudslides triggered by the country's worst torrential rains in 14 years. The DMC also said 104 people were still listed as missing while another 88 remained in hospital. The government said relief operations had intensified over the weekend following a break in the monsoon rains. Meanwhile, India is sending two naval ships laden with supplies over the weekend.

### Several parts of Odisha, West Bengal and Tripura likely to witness heavy rainfall on the 30th May 2017 under the influence of cyclonic storm Mora

Powerful Cyclone Mora has hit the Bangladesh coast. Earlier authorities had evacuated up to a million people from the affected areas. The cyclone formed after heavy rains in Sri Lanka caused floods and landslides, that killed at least 180 people. Meanwhile, several parts of Odisha, West Bengal and Tripura are likely to witness heavy rainfall today under the influence of cyclonic storm Mora. Based on the Bhubaneswar Met department’s forecast, the revenue and disaster management department has asked the collectors of Mayurbhanj, Balasore, Jajpur and Bhadrak to remain vigilant to the situation. The local Met office has issued advice for hoisting the Distant Cautionary Signal number two at Paradip and Gopalpur ports in the state and asked  fishermen not to venture into the sea. In Tripura, the Met department has issued a warning that heavy rainfall associated with squally wind with speed of 45 to 55 kmph gusting to 65 kmph may occur today under the influence of Mora.