Question

60 men can do a piece of work in 15 days. How many days required for 30 men to do work

Answer 1

Answer:

30 days will be  required

Step-by-step explanation:

Answer 2

Answer:

7 and a half days

Step-by-step explanation:

60 men take 15 days to do a piece of work.

RATIO 60:15 = 4:1

Let time taken by thirty men be X

SO

4:1::30:X

Prod of extremes = prod of means

4X=30

X=7.5