Question

15 men can build a 16.25-m-long wall up to a certain height in one day. How many men should be employed to build a wall of the same height but of length 26 metres in one day?

Answer 1

Number of men employed to built the 16.25 m long wall = 15
Number of men required to built a 1 m long wall = $\frac{15}{16.25}$

Number of men that should be employed to built a 26 m long wall = $\frac{15}{16.25}\times 26$ = 24
∴ 24 men should be employed to build a wall of length 26 m in a day.