## Introduction to Data Interpretation

#### Data Interpretation

Direction: The follow- ing diagram shows the percentage of population of Hindus, Sikhs and Muslims with respect to total population in a town during 2005 to 2008. Study the diagram and answer the questions :

1. If the total population in 2007 was 80 lakh, then the number of Hindus in 2007 was (in lakh)

1. On the basis of given graph in question ,
The total population in 2007 = 80 lakh
Percent of Hindus in 2007 = 25%
Number of Hindus = 25% of 80 lakh

##### Correct Option: D

On the basis of given graph in question ,
The total population in 2007 = 80 lakh
Percent of Hindus in 2007 = 25%
Number of Hindus = 25% of 80 lakh

 Number of Hindus = 80 × 25 = 20 lakhs 100

1. What is the ratio of the month having more demand than production to those having more production than demand?

1. From the given bar diagram , we see
Number of the month having more demand than production i.e.( January , March and May ) = 3
Number of the month having more production than demand i.e. ( February , April ) = 2
Required ratio = Number of the month having more demand than production : Number of the month having more production than demand

##### Correct Option: B

From the given bar diagram , we see
Number of the month having more demand than production i.e.( January , March and May ) = 3
Number of the month having more production than demand i.e. ( February , April ) = 2
Required ratio = Number of the month having more demand than production : Number of the month having more production than demand
∴ Required ratio = 3 : 2

1. What is the difference between average demand and average production of computers of the five months taken together?

1. As per the given bar graph , we have
Total demand of computers of the five months = 2500 + 100 + 2000 + 700 + 2800 = 8100
Number of months = 5

 Average demand = 8100 = 1620 5

Total production of computers of the five months = 1000 + 1300 + 500 + 2200 + 1800 = 6800
Number of months = 5
 Average production = 6800 = 1360 5

##### Correct Option: D

As per the given bar graph , we have
Total demand of computers of the five months = 2500 + 100 + 2000 + 700 + 2800 = 8100
Number of months = 5

 Average demand = 8100 = 1620 5

Total production of computers of the five months = 1000 + 1300 + 500 + 2200 + 1800 = 6800
Number of months = 5
 Average production = 6800 = 1360 5

Required difference = Average demand - Average production
∴ Required difference = 1620 – 1360 = 260

1. The production of computers in April is approximately how many times that of production in January?

1. From the given bar diagram , we see
The production of computers in April = 2200
The production of computers in January = 1000

 Required answer = The production of computers in April The production of computers in January

##### Correct Option: A

From the given bar diagram , we see
The production of computers in April = 2200
The production of computers in January = 1000

 Required answer = The production of computers in April The production of computers in January

 Required answer = 2200 = 2.2 1000

1. What percent of the demand of computers for the month of March is the demand of computers for the month of February?

1. On the basis of given graph in question ,
The demand of computers for the month of March = 2000
The demand of computers for the month of February = 100

 Required percentage = The demand of computers for the month of February × 100 The demand of computers for the month of March

##### Correct Option: A

On the basis of given graph in question ,
The demand of computers for the month of March = 2000
The demand of computers for the month of February = 100

 Required percentage = The demand of computers for the month of February × 100 The demand of computers for the month of March

 Required percentage = 100 × 100 = 5% 2000