## Introduction to Data Interpretation

#### Data Interpretation

Direction: Number of toys of five types (A to E) manufactured over the years (in thousands) is given below. Study the table and answer the following questions.

1. The difference of the average number of toys (in thousands) of the type B and C, manufactured over the years, was

1. On the basis of given table in question ,
Difference in production of toys of type B and C :
Year 2002 ⇒ 150 – 78 = 72 thousand
Year 2003 ⇒ 180 – 100 = 80 thousand
Year 2004 ⇒ 175 – 92 = 83 thousand
Year 2005 ⇒ 160 – 120 = 40 thousand
Year 2006 ⇒ 185 – 130 = 55 thousand
Total difference in production of toys of type B and C = 72 + 80 + 83 + 40 + 55 = 330 thousands
Number of types of toys = 5

##### Correct Option: B

On the basis of given table in question ,
Difference in production of toys of type B and C :
Year 2002 ⇒ 150 – 78 = 72 thousand
Year 2003 ⇒ 180 – 100 = 80 thousand
Year 2004 ⇒ 175 – 92 = 83 thousand
Year 2005 ⇒ 160 – 120 = 40 thousand
Year 2006 ⇒ 185 – 130 = 55 thousand
Total difference in production of toys of type B and C = 72 + 80 + 83 + 40 + 55 = 330 thousands
Number of types of toys = 5

 ∴ Required answer = Total difference in production of toys of type B and C Number of types of toys

 Required answer = 330 = 66 thousand 5

1. The approximate percentage increase of the production of all types of toys from 2005 to 2006 was

1. According to given table, we have
Total production of toys in 2005 = 675 thousand
Total production of toys in 2006 = 750 thousand
Increase = 750 - 675 = 75 thousand

 Percentage increase = Increase × 100 = 11% 675

##### Correct Option: C

According to given table, we have
Total production of toys in 2005 = 675 thousand
Total production of toys in 2006 = 750 thousand
Increase = 750 - 675 = 75 thousand

 Percentage increase = Increase × 100 = 11% 675

 Percentage increase = 75 × 100 = 11% 675

1. The percentage drop in production of A type of toys from 2002 to 2004 was

1. As per the given above table , we see
Production of A type of toys in 2002 = 200 thousands
Production of A type of toys in 2004 = 180 thousands
Decrease = 200 - 180 = 20

 Percentage decrease = Decrease × 100 Production of A type of toys in 2002

##### Correct Option: A

As per the given above table , we see
Production of A type of toys in 2002 = 200 thousands
Production of A type of toys in 2004 = 180 thousands
Decrease = 200 - 180 = 20

 Percentage decrease = Decrease × 100 Production of A type of toys in 2002

 Percentage decrease = 20 × 100 = 10% 200

1. The approximate percentage increase in production of D type of toys from 2003 to 2005 was

1. As per the given above table , we see
Production of D type of toys in 2003 = 105 thousands
Production of D type of toys in 2005 = 125 thousands
Increase = 125 - 105 = 20

 Percentage increase = Increase ́ × 100 Production of D type of toys in 2003

##### Correct Option: B

As per the given above table , we see
Production of D type of toys in 2003 = 105 thousands
Production of D type of toys in 2005 = 125 thousands
Increase = 125 - 105 = 20

 Percentage increase = Increase ́ × 100 Production of D type of toys in 2003

 Percentage increase = 20 × 100 ≈ 19% 105

Direction: A survey of movie going habits of city dwellers from 5 cities A, B, C, D and E is given below. The first column gives the percentage of viewers in each city who watch less than two movies a week. The second column gives the total number of viewers who view two or more movies per week. Study the table and answer the questions.

1. Which two cities have the same number of movie watchers?

1. On the basis of given table in question ,
Let total number of film watchers be 100% .
In city A , If 60% of them watched less than two movies a week , then 40% watched two or more movie per week .
∴ 40% ≈ 2400

 ⇒ 1% = 2400 40

 Now , 100% = 100 × 2400 = 6000 40

Similarly for city B,
 ⇒ 100% = 100 × 3000 = 3750 80

For city C,
 ⇒ 100% = 100 × 2400 = 16000 15

##### Correct Option: D

On the basis of given table in question ,
Let total number of film watchers be 100% .
In city A , If 60% of them watched less than two movies a week , then 40% watched two or more movie per week .
∴ 40% ≈ 2400

 ⇒ 1% = 2400 40

 Now , 100% = 100 × 2400 = 6000 40

Similarly for city B,
 ⇒ 100% = 100 × 3000 = 3750 80

For city C,
 ⇒ 100% = 100 × 2400 = 16000 15

For city D,
 ⇒ 100% = 100 × 2700 = 6000 45

For city E,
 ⇒ 100% = 100 × 8000 = 32000 25

Hence , A and D cities have the same number of movie watchers , which is 6000 .