Question

A work force of $50$ man with a contractor can finish a piece of work in $5$ month. In how many month the same work can be completed by $125$ man.

Answer 1

Let the work can be completed in $x$ months.

According to the question,

$50\times 5=125\times x$

$50=25\times x$

$x=2$ months

Hence, this is the answer.