Ques:- Four of the following five are alike in a certain way and hence form a group. Which one of the following does not belong to that group?
A. 63
B. 64
C. 39
D. 48
E. 79
Ques:- The HCF of two numbers is 11 and their LCM is 7700. If one of these numbers is 275, then the other one is
A. 918
B. 308
C. 283
D. 279
Ques:- The HCF and LCM of two numbers are 18 and 3780 respectively. If one of them is 540, then the second one is
A. 112
B. 118
C. 126
D. 142