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36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work?

12
18
22
24
None of these

Correct Answer: 24

Explanation:

Let the required number of days be x

Less men, More days (Indirect Proportion)

∴ 27 : 36 :: 18 : x ⟺ 27 x x = 36 x 18

⟹ x =	36 x 18
	27

⟹ x = 24.

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