Question

24 men working at 8 hrs per day can a piece of work in 15 days.In how many days can 20 men working at 9 hrs per day to do the same work?

Answer 1

Answer:

16

Step-by-step explanation:

Men : Hours : Days

24         8         15

24          1         120

 4           1          720

 4           9          80

20           9          16