Question

It takes two men six hours to paint a fence. How long would it take three men to paint the same fence?

Answer 1

Explanation:

If 2 men take 6 hrs to paint the fence, then

3 men would obviously take less time to paint the same fence;

2 men= 6 hrs

3 men= ?

thus, the time taken by three men to paint the same fence=2/3 ×6 hrs

= 4 hrs