Votes polled (in lakh) for four IT companies A–D in six alternate months. Each person voted for exactly one company.

Month	A	B	C	D
January	1.5	2.5	3.0	4.0
March	1.0	3.0	2.0	4.0
May	1.0	1.0	2.5	3.5
July	1.5	1.0	2.5	4.5
September	2.0	2.0	3.5	4.5
November	3.0	2.0	1.5	4.0

The number of votes polled for A and C together in January, May and September is approximately what percentage less than the votes polled for B and D together in March, July and November?

A27 ✓ Correct

B37

C44

D18

Correct answer: (A) 27

Explanation

The A and C total is about 27 percent less, so that is the answer.

A and C together in January, May and September are 4.5, 3.5 and 5.5, totalling 13.5 lakh.

B and D together in March, July and November are 7.0, 5.5 and 6.0, totalling 18.5 lakh.

The difference is 18.5 minus 13.5, which is 5 lakh.

This difference as a percentage of the B-and-D total of 18.5 is 5 over 18.5.

That is about 27 percent.

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