Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?

3 : 4
4 : 3
5 : 3
Data inadequate

Correct Answer: 4 : 3

Explanation:

(20 x 16) women can complete the work in 1 day.

∴ 1 woman's 1 day's work =	1	.
	320

(16 x 15) men can complete the work in 1 day.

∴ 1 man's 1 day's work =	1
	240

So, required ratio

=	1	:	1
	240		320

=	1	:	1
	3		4

= 4 : 3 (cross multiplied)

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