Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job?
A. 8 hrs
B. 7 1/2 hrs
C. 7 hrs
D. 9 hrs
Answer:B
Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job?
A. 8 hrs B. 7 1/2 hrs C. 7 hrs D. 9 hrs