what least number should be added to 1056 , so that the sum is completely divisible by 23 ?
"that is 1056 / 23 = 45 remainder = 21 = > 21 + 2 = 23 hence 2 should be added to 1056 so that the sum will be divisible by 23 answer is option b"
subtract(23, reminder(1056, 23))