Question

# 5 masons built a wall in 2 days. If the wall was to be built in a single day, then how many masons should be employed?

A
9 masons
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B
12 masons
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C
8 masons
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D
10 masons
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Solution

## The correct option is D 10 masonsGiven, A wall is built in 2 days by 5 masons. We know that the lesser the number of days to build, more will be the number of masons required. So, Number of days(x) ∝1Number of masons(y) ∴x1x2 = y2y1 Given, x1 = 2 days y1 = 5 masons x2 = 1 day and y2 = number of masons required ⇒21=y25 ⇒ y2 = 2 × 51 = 10 masons ∴ 10 masons should be employed to build a wall in a single day.

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