15 men take 20 days to complete a job working 8 hours a day. The number of hours a day should 20 men take to complete the job in 12 days :
15 men take 20 days to complete a job working 8 hours a day. The number of hours a day should 20 men take to complete the job in 12 days :
[A]5 hours
[B]10 hours
[C]15 hours
[D]18 hours
10 hours
Hence option [B] is correct answer.
