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:- Find out the wrong number in the series:
1, 3, 10, 21, 64, 129, 356, 777
1, 3, 10, 21, 64, 129, 356, 777
A. 356
B. 129
C. 64
D. 10
Ques:- What percentage of numbers from 1 to 70 have squares that end in the digit 1?
A. 1
B. 14
C. 20
D. 21