Question

16 men can do a piece of work in 14 days. How long will it take for 7 men to do the same work?

• A. 34 days
• B. 30 days
• C. 28 days
• D. 32 days

Answer 1

The correct option is D

32 days

More men, less days; less men, more days
$\begin{array}{cc}Men& Days\\ 16& 14\\ 1& 14\times 16\\ 7& \frac{14\times 16}{7}=32\end{array}$

$\therefore$ 7 men will take 32 days to do the same work.