Practice Test Discussion

12 men can do a piece of work in 24 days, how many days are needed to complete the work if only 8 men do this work?

[IDBI officers 2010]

28 days

36 days

48 days

52 days

None of these

Explanation

According to the formula,

M₁D₁W₂=M₂D₂W₁

M₁=12, D₁=24, M₂=8, D₂=?

$D_{2} = \frac{12 \times 24}{8} = 12 \times 3 = 36 d a y s$

Hence option B is correct

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