Question

Verify that the sum of 29 and the number obtained by reversing the digits is divisible by 11.

Answer 1

92+29=121 Hence it is divisible by 11.. You can check as a general case also.. Let the no. Be 10x+y By reversing the digits no. Will be 10y+x When we add both no. Sum becomes 11x+11y Hence no. Is divisible by 11