## Introduction to Data Interpretation

#### Data Interpretation

Direction: The following pie-chart shows the study time of different subjects of a student in a day. Study the pie–chart and answer the following questions 1. Instead of 10%, if the student spends 15% to study other subjects and the time is taken from the time scheduled to study mathematics and if he/she used to study 20 hours per day, then the difference of time for studying mathematics per day is :

1. On the basis of given pie chart in question ,
Percent of studying Maths students = 30%
Time spent in mathematics in a day = 20 hours

 Usual time spent in studying Maths = 2 × 30 = 6 hours 100

 Usual time spent in studying other subjects = 10 × 20 = 2 hours 100

##### Correct Option: C

On the basis of given pie chart in question ,
Percent of studying Maths students = 30%
Time spent in mathematics in a day = 20 hours

 Usual time spent in studying Maths = 2 × 30 = 6 hours 100

 Usual time spent in studying other subjects = 10 × 20 = 2 hours 100

 New time spent in studying other subjects = 15 × 20 = 3 hours 100

Difference = New time spent in studying other subjects - Usual time spent in studying other subjects
Difference = 3 – 2 = 1 hours

1. If the student studied 10 hours in a day, then he/she studied mathematics for

1. As per the given pie chart in question ,
Percent of studying given all subject by students = 100%
Percent of studying mathematics students = 30%
The student studied in a day = 10 hours
∵ 100% ≡ 10 hours

 ∴ 1% = 10 100

##### Correct Option: A

As per the given pie chart in question ,
Percent of studying given all subject by students = 100%
Percent of studying mathematics students = 30%
The student studied in a day = 10 hours
∵ 100% ≡ 10 hours

 ∴ 1% = 10 100

 ∴ 30% ≡ 10 × 30 = 3 hours 100

1. If the student studied chemistry for 3 hours, then he/she studied geography for

1. On the basis of given pie chart in question ,
The student studied chemistry = 3 hours
Percent of studying chemistry students = 15%
Percent of studying geography students = 10%
∵ 15% ≡ 3 hours

##### Correct Option: B

On the basis of given pie chart in question ,
The student studied chemistry = 3 hours
Percent of studying chemistry students = 15%
Percent of studying geography students = 10%
∵ 15% ≡ 3 hours

 ∴ 10% ≡ 3 × 10 = 2 hours 15

1. The time spent to study history and chemistry is 4 hours 30 minutes, Then the student studied physics for

1.  Given , Time spent in studying history and chemistry = 4 1 hours. 2

As per the given pie chart in question ,
The corresponding percentage of studying physics = 20%
The corresponding percentage of studying history and chemistry = (15 + 15)% = 30%
 ∵ 30% ≡ 9 hours 2

##### Correct Option: D

 Given , Time spent in studying history and chemistry = 4 1 hours. 2

As per the given pie chart in question ,
The corresponding percentage of studying physics = 20%
The corresponding percentage of studying history and chemistry = (15 + 15)% = 30%
 ∵ 30% ≡ 9 hours 2

Now ,
 ∴ 20% ≡ 9 × 20 = 3 hours 2 × 30

Direction: The following pie chart shows the export of automobiles of India to the 10 countries given below in 2014. The 10 countries imported 47.8% of the total export of India. Observe the chart given below and answer the following question : 1. What is the corresponding angle to the exports for Turkey?

1. On the basis of given pie chart in question ,
Percent of exports for Turkey = 4%
We know that , 100% ≡ 360°

 ∴ 1% ≡ 360 100

##### Correct Option: A

On the basis of given pie chart in question ,
Percent of exports for Turkey = 4%
We know that , 100% ≡ 360°

 ∴ 1% ≡ 360 100

 ∴ 4% ≡ 360 × 4 = 14.4° 100