Ques:- If m, n, o, p and q are integers, then m(n + o) (p – q) must be even when which of the following is even?
A. m
B. n
C. m + n
D. n + p
Ques:- How often between 11 o’clock and 12 o’clock are the hands of a clock in integral number of minutes apart?
A. 54 times
B. 55 times
C. 56 times
D. 58 times