Question

A number is divisible by 11 if the difference between the sum of digits at odd places and even places (from the right) is:

Options

• Always 0

• 0 or divisible by 11

• Any even number

• Any odd number

Answer 1

0 or divisible by 11

Explanation:

According to the divisibility rule for 11, the difference between the sum of digits at odd places and even places must be either 0 or a multiple of 11.