Question

If 15 men can complete work in 30 days, then how much time will it take for 10 men?

• A. 25 days
• B. 35 days
• C. 45 days
• D. 55 days

Answer 1

The correct option is C 45 days

If more men are available to work, then it will take less days.

So, $M\propto \frac{1}{D}$

$M_1{D}_1=M_2{D}_2$

Given values:

$M_1=15,D_1=30days,M_2=10,D_2=?$

Putting in the values,

$15\times 30=10\times D_2$

$D_2=45days$

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