Question

X number of men can finish a pice of work 30 days . If there were 6 men more , the work could be finished in 10 days less. What is the original number of men.

Answer 1

Answer:

12 men.

Step-by-step explanation:

X number of men can finish a piece of work in 30 days. ==> Total work = 30X Men days. -- (1)

If there were 6 men more, the work could be finished in 10 days less. ==> Total work = (X+6)*20 days -- (2)

By (1) and (2) we have:

30X = (X+6)*20 => 10X = 120 => X = 12 men.