The average of the two-digit numbers which remain the same when the digits interchange the positions is-

The average of the two-digit numbers which remain the same when the digits interchange the positions is-

A 33

B 44

C 55

D 66

Solution

Correct Answer: Option C

11+22+33+44+55+66+77+88+99=495

So, 495/9= 55 (Ans.)