## 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 180 students come walking to school what is the strength of the school?

1. ∵ 144° ≡ 180 students

 ∴ 360° ≡ 180 × 360 144

= 450 students

##### Correct Option: B

∵ 144° ≡ 180 students

 ∴ 360° ≡ 180 × 360 144

= 450 students

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%