Test Index

MAT Exam 2021 Paper

Question Numbers: 146-150

DIRECTIONS (Qs. 146-150) : Study the following graph to answer these questions.

The bar graph shows the performance of 3 political parties

A, B

and C in terms of votes acquired in the elections in a constituency during 2008-2012.

Question : 146 of 200

Marks: +1, -0

Solution:

Concept:

Compare the average votes of B and A over the five years, then express the difference as a percentage of A's average.

Explanation:

Average votes acquired by A:

\frac{2.1+2.5+3.05+4.1+4.15}{5} = \frac{15.9}{5} = 3.18

Average votes acquired by B:

\frac{3.5+3.1+4+3.9+3.8}{5} = \frac{18.3}{5} = 3.66

B's average is more than A's average.

Difference

= 3.66 - 3.18 = 0.48

Required percentage

= \frac{0.48}{3.18} \times 100 \approx 15\%

Answer:

B's average is about

15\%

more than A's average.

Correct option: D. 15% more.

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