Question

if 28 men can dig a well in 16 days. How many more men are required to dig the same well in 12 days.
Please answer me. I have a exam.

Answer 1

I think the answer is .....
it is already digged so no one is required to dig it
( OR)

Answer 2

If 28 men can dig in 16 days
? Men can dig in 12 days
= 12*28/16
= 3*7 (cancellation)
= 21 men