## Introduction to Data Interpretation

#### Data Interpretation

Direction: The following graph represents the transport used by children. Study the graph and answer the given questions. 1. If 10 students come by car, how many come by bus?

1. ∵ 24° ≡ 10 students

 ∴ 120° ≡ 10 × 120° 24

= 50 students

##### Correct Option: B

∵ 24° ≡ 10 students

 ∴ 120° ≡ 10 × 120° 24

= 50 students

1. What is the percentage of children using scooter?

1. Corresponding angle for children using scooter = 72°
∵ 360° ≡ 100%

 ∴ 72% ≡ 100 × 72 = 20% 360

##### Correct Option: A

Corresponding angle for children using scooter = 72°
∵ 360° ≡ 100%

 ∴ 72% ≡ 100 × 72 = 20% 360

1. What is the measure of the angle at the centre representing people walking?

1. Corresponding angle for children who go on walking
= 360 – 120 – 72 – 24 = 144°

##### Correct Option: A

Corresponding angle for children who go on walking
= 360 – 120 – 72 – 24 = 144°

Direction: The following pie-chart shows the monthly expenditure of a family on food, house rent, clothing, education, fuel and miscellaneous. Study the pie-chart and answer the questions. 1. Total percentage of expenditure on house rent, clothing and fuel is greater than the percentage of expenditure on food by

1. House rent + clothing + fuel ⇒ 20 + 12 + 15 = 47%
Food ⇒ 30%
Difference = 47 – 30 = 17%

##### Correct Option: B

House rent + clothing + fuel ⇒ 20 + 12 + 15 = 47%
Food ⇒ 30%
Difference = 47 – 30 = 17%

1. If the percentage of expenditure on food is x% of the total percentage of expenditure on clothing, education and fuel, then x equals

1. 30% = x% of (12 + 18 + 15)%

 ⇒ 30 = X × 45 100

 ⇒ X = 30 × 100 = 200 45 3

 = 66 2 % 3

##### Correct Option: C

30% = x% of (12 + 18 + 15)%

 ⇒ 30 = X × 45 100

 ⇒ X = 30 × 100 = 200 45 3

 = 66 2 % 3