Question

Mark (✓) against the correct answer
8 men can finish a piece of work in 40 days. If 2 more men join them, the work will be completed in

(a) 30 days
(b) 32 days
(c) 36 days
(d) 25 days

Answer 1

8 men finish the work in 40 days.
1 man can finish the work in 8$\times$40 days. [Less men, more days]
10 men can finish the work in $\frac{8\times 40}{10}$ = 32 days. [More men, less days]
∴ If 2 more men join them, the work will be completed in 32 days.

The correct option is (b).