## Introduction to Data Interpretation

#### Data Interpretation

1. What is the central angle corresponding to the sale of Hindi newspapers in locality E?

1. As per the given pie chart in question ,
Sales of Hindi News Papers in locality E = 4000
Total sales of Hindi News Papers = 3500 + 2400 + 3600 + 2500 + 4000 = 16000

 Required central angle = Sales of Hindi News Papers in locality E × 360° Total sales of Hindi News Papers

##### Correct Option: B

As per the given pie chart in question ,
Sales of Hindi News Papers in locality E = 4000
Total sales of Hindi News Papers = 3500 + 2400 + 3600 + 2500 + 4000 = 16000

 Required central angle = Sales of Hindi News Papers in locality E × 360° Total sales of Hindi News Papers

 Required central angle = 4000 × 360° = 90° 16000

Direction: The numbers of different colleges in India in different years is given in the graph below. Per cent distribution of different colleges in year 1980 and 1990 is shown in pie chart

1. What is the % increment in the number of colleges from 1960 to 1980?

1. On the basis of given graph in question ,
Number of colleges in 60’s = 5000
Number of colleges in 80’s = 20000

 Required percentage increase = 20000 - 5000 = 300% 5000

##### Correct Option: A

On the basis of given graph in question ,
Number of colleges in 60’s = 5000
Number of colleges in 80’s = 20000

 Required percentage increase = 20000 - 5000 = 300% 5000

 Required percentage increase = 15000 × 100 = 300% 5000

1. By what percent is the number of medical colleges in 1980 less than that in 1980?

1. According to given graph and pie chart in question ,
Percent of Medical colleges in 80’s = 12%
Number of colleges in 80’s = 20000
Percent of Medical colleges in 90’s = 8%
Number of colleges in 90’s = 40000

 Number of Medical colleges in 1980 = 20000 × 12 = 2400 100

 Number of Medical colleges in 1990 = 40000 × 8 = 3200 100

 ∴ Required percent = 3200 - 2400 × 100 3200

##### Correct Option: A

According to given graph and pie chart in question ,
Percent of Medical colleges in 80’s = 12%
Number of colleges in 80’s = 20000
Percent of Medical colleges in 90’s = 8%
Number of colleges in 90’s = 40000

 Number of Medical colleges in 1980 = 20000 × 12 = 2400 100

 Number of Medical colleges in 1990 = 40000 × 8 = 3200 100

 ∴ Required percent = 3200 - 2400 × 100 3200

 Required percent = 800 = 25% 32

1. What is the average number of colleges for the given years?

1. According to given graph in question ,
Number of colleges in 1960 = 5000
Number of colleges in 1970 = 10000
Number of colleges in 1980 = 20000
Number of colleges in 1990 = 40000
Number of colleges in 2000 = 80000
Sum of Number of colleges from 1960 t0 2000 = 5000 + 10000 + 20000 + 40000 + 80000
Total number of years = 5

##### Correct Option: B

According to given graph in question ,
Number of colleges in 1960 = 5000
Number of colleges in 1970 = 10000
Number of colleges in 1980 = 20000
Number of colleges in 1990 = 40000
Number of colleges in 2000 = 80000
Sum of Number of colleges from 1960 t0 2000 = 5000 + 10000 + 20000 + 40000 + 80000
Total number of years = 5

 Required average = ( 5 + 10 + 20 + 40 + 80) × 1000 5

 Required average = 155000 = 31000 5

Direction: The pie- chart shows the percentage of literate and illiterate males and females in a state. Study the diagram and answer the following questions.

1. If the total number is 35000, then the difference between the number of literate males and that of literate females is

1. On the basis of given pie chart in question ,
Percent of literate males = 45%
Percent of literate females = 35%
Total number of males and females = 35000

 Literate males = 35000 × 45 = 15750 100

##### Correct Option: A

On the basis of given pie chart in question ,
Percent of literate males = 45%
Percent of literate females = 35%
Total number of males and females = 35000

 Literate males = 35000 × 45 = 15750 100

 Literate females = 35000 × 35 = 12250 100

Required difference = 15750 – 12250 = 3500