## Introduction to Data Interpretation

#### Data Interpretation

Direction: The following pie-chart shows the sources of funds (In \$ billion) to be collected by the National Highways Authority of India (NHAI) for its Phase II projects. Study the pie-chart and answer the following Three questions : 1. If the toll is to be collected through an outsourced agency by allowing a maximum 10% commission, how much amount should be permitted to be collected by the outsourced agency, so that the project is supported with \$ 4,910 billion?

1. If the amount permitted be \$ x then,

 X × 100 = 4910 110

 ⇒ X = 4910 × 110 = \$ 5401 billion 100

##### Correct Option: C

If the amount permitted be \$ x then,

 X × 100 = 4910 110

 ⇒ X = 4910 × 110 = \$ 5401 billion 100

Direction: Study the following graph carefully and answer the given questions. 1. The number of A-type employees in 1998 was approximately what per cent of the number of A-type employees in 1997?

1. Number of A-type employees : Year 1997

 ⇒ 42980 × 20 = 8596 100

Year 1998 ⇒ 10700
∴ Required percent
 = 10700 × 100 ≈ 125 8596

##### Correct Option: D

Number of A-type employees : Year 1997

 ⇒ 42980 × 20 = 8596 100

Year 1998 ⇒ 10700
∴ Required percent
 = 10700 × 100 ≈ 125 8596

1. If the number of D type employees in 1998 was 5000, what would have been its approximate percentage in the company?

1. Required per cent

 = 5000 × 100 ≈ 10 48640

##### Correct Option: A

Required per cent

 = 5000 × 100 ≈ 10 48640

1. What was the approximate difference in the number of B type of employees during 1997 and 1998?

1. Required difference

 = 48640 × 10 - 42980 × 6 100 100

= 4864 – 2579 = 2285

##### Correct Option: A

Required difference

 = 48640 × 10 - 42980 × 6 100 100

= 4864 – 2579 = 2285

1. From 1997 to 1998 in the case of which of the following types of employees the change was maximum?

1. It is obvious from the pie–chart.
Percentage increase

 = 10 - 6 × 100 6

 = 200 ≈ 67 % 3

##### Correct Option: A

It is obvious from the pie–chart.
Percentage increase

 = 10 - 6 × 100 6

 = 200 ≈ 67 % 3