Eight Men Can Finish A Job In 15 Days. In How Many Days Can 12 Mem Finish The Same Job?

Eight men can finish a job in 15 days. In how many days can 12 mem finish the same job?

 

10 days

If eight men can finish the job in 15days, then a man can finish the job in 8x15=120 days.

12 men can finish the job in 120÷12=10 days.