
Ques:- The H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M.?
A. 24
B. 48
C. 56
D. 60
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
Ques:- Find out the wrong number in the series:
40960, 10240, 2560, 640, 200, 40, 10
40960, 10240, 2560, 640, 200, 40, 10
A. 40
B. 200
C. 640
D. 2560