Ques:- A number is divisible by 11 if the difference between the sum of the digits in odd and even places respectively is
A. a multiple of 3
B. a multiple of 5
C. zero or a multiple of 7
D. zero or a multiple of 11
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