Ques:- Find out the wrong number in a given series.
6, 13, 18, 25, 30, 37, 40
6, 13, 18, 25, 30, 37, 40
A. 25
B. 30
C. 37
D. 40
Ques:- 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