Question

125_12 is divisible by 11 in smallest possible

Answer 1

Answer:

Sum of odd alternate numbers = 1+5+1 = 7

Sum of even alternate numbers = 2+__+2 = 4 + _

Differences of two numbers = 7 - 4 = 3

Thus, the answer is 3.

7 - (4+3) = 7-7 = 0