Practice Test Discussion

30 men can do a piece of work in 16 days. How many men would be required to do the same work in 20 days?

12 men

36 men

48 men

24 men

None of these

Explanation

According to the formula,

M₁ D₁ = M₂ D₂

M₁ = 30, D₁ =16, M₂ = ?, D₂ = 20,

$M_{2} = \frac{30 \times 16}{20} = 24 m e n$

Hence option D is the correct.

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