Practice Test Discussion

8 men can do a piece of work in 10 days. How many men are needed to complete the work in 40 days?

8 men

2 men

6 men

9 men

None of these

Explanation

Here,

M₁ = 8, D₁ =10, W₂ =1

M₂ = ?, D₂ = 40, W₁= 1

So according to the formula,

M₁ D₁ W₂ = M₂ D₂ W₁

$8 \times 10 \times 1 = M_{2} \times 40 \times 1 ⇨ M_{2} = \frac{8 \times 10}{40} = 2 m e n$

Hence option B is the correct.

For more Short tricks and formulae click

- Share with your friends! -

Comments