**In this post we will solve Pie Chart Questions by using Smart Methods that take less time.**

In SBI PO,IBPS PO and SSC CGL Exam, Data Interpretation Questions manage to make their
gateway. It is necessary to understand the concept as Data Interpretation
questions carry heavy weightage, which varies from 10-45 marks. This concept
from the quantitative aptitude section is based on calculation and selecting
the right numbers from the given Data. One such set of Data Interpretation
questions are asked on Pie Charts. Pie Chart questions are easy to solve if one
selects the right formula and substitutes the correct values.

This is
the third part of different types Data Interpretation Questions. The first
part - Data Interpretation 1: Data Interpretation Tricks to solve Data Interpretation Question,
discusses the basic concept of Data Interpretation and little tricks to solve
Data Interpretation Questions. The second part - Data Interpretation 2: When Questions are Asked on Tabular form, discusses
the first method of representation of data- Tables. In this post we will
discuss the second method of Data Interpretation "Pie Chart" and will
solve few Pie Chart Questions.

**What is a Pie Chart?**

A pie
chart is a circle which is drawn around an angle of 360 degrees. It is divided
into different sectors where each sector represents a particular element, from
the given data. A pie chart is useful when percentage proportion of various
elements are to be shown. A pie chart is similar to a pizza or a pie, which is
cut into four quarters where each quarter represents 25% of the pizza or the
pie, likewise a complete circle is cut into different proportions based on the
percentage. A pie chart is visually attractive and helps in making
easy comparison.

In the
examination pie chart questions may contain one, two or three diagrams and have
pie chart questions on it. In pie chart questions, we need to take all the pie
charts into consideration while solving a problem.

**Example of Pie Chart Questions**

**Problem 1:**

**Before going ahead let's look at all the possible questions that can be asked, by taking the accounts department as an example.**

- Total number of people in accounts
department = 20% of 3600 = 720

- Total number of people who got
promoted in accounts department = 8% of 1200 = 96

- Total number of males in account
department = 5% of 2040 = 102

- Total number of females in account
department = No.of people in accounts department - No.of males in accounts department = 720 -102 = 618

**Question 1:**

**If half of the employees who got promoted from IT department are males, what is the approximate percent of males who got promoted from the IT department?**

1)61 2)29 3)54 4) 42 5) 38

**Solution:**

**Step 1:**

Half of
the employees who got promoted from IT departments are males,

Number
of people who got promoted from IT department = 26% of 1200 = 312

Number
of males who got promoted from IT department = (1/2 ) of 312 = 156

**Step 2:**

We need
to find the percentage of number of males who got promoted from IT department.

x is what percent of y= x/y x 100 [ Percentage Formula]

x=
Number of males who got promoted from IT department = 156

y =
Total number of males in IT department = 20% of 2040 = 408

No. of males in IT department/ No. of males x 100

**Step 3:**

By
substituting the values in
the formula

156/408
x 100

= 38%

Therefore,
the percentage of number of males who got promoted from the IT department is 38%.

**Question 2:**What is the total number of females working in the production and marketing department together?

**Solution:**

**Step 1:**

We need
to find No.of females working in Production and Marketing Department.

No. of female in the Production and Marketing Department = No. of employees in Production and Marketing Dept. - No. of males in Production and Marketing Dept.

**Step 2:**

We can
club departments together instead of finding the number of people working for
individual departments.

No.of employee (Production + Marketing) = 3600 (35% + 18%)

=
3600 x 53% = 1908

No.of males (Production + Marketing) = 2040(50% + 15%)

= 65% of 2040 = 1326

No. of females in Production and marketing department = 1908 - 1326

= 582

Therefore,
Total number of females in the Production and Marketing Departments are
582.

**Question 3:**

**What is the angle made at the center by the sector showing the number of males in marketing department?**

**Solution:**

**Step 1:**

The
formula for finding the angle that is made at the center is,

Percentage
of number of males x 360

^{o}(As it makes a complete angle)
15% of
360

^{o}= 54^{o}
Therefore,
the angle that will be made by the total number of males working in
the marketing department is 54

^{o}**.****Question 4:**

**What is the percentage of total number of people who got promoted from all the departments?**

1) 56 2)21 3) 45 4) 33 5) 51

**Solution:**

**Step 1:**

As we
need to find the percentage change

x is
what percent of y = x/y x 100 [Formula]

x
-Total number of people who got promoted

in all the departments = 1200

y-
Total number of employees in all the departments = 3600

**Step 2:**

Substituting
the values in the formula,

1200
/3600 x 100 = 33.33%

**Question 5:**What is the ratio of number of employees who got promoted in HR department to the number of male employees in IT department.

**Solution:**

**Step 1:**

We need
to find the ratio of,

No. of people promoted in HR department: Number of Males in IT department

**Step 2:**

By
substituting the values in the formulas

11% of
1200 : 20% of 2040

**Step 3:**

By
taking percent as common

11 x
1200 : 20 x 2040

11:34

Therefore,
The ratio of people who got promoted in HR department and the number of males
in IT department is 11:34.

Do
write in the comment section how this blog helped you to solve Pie Chart Questions.

Stay
tuned for our next blog in this series.

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