Question

What is the smallest number that should be added to the difference of 5623 and 61 so that the difference is divisible by 10?

• A. 9
• B. 5
• C. 4
• D. 8

Answer 1

The correct option is D 8

Difference of 5623 and 61 is
5623 - 61 = 5562
The ones digit of 5562 is 2.
A number is divisible by 10 if its ones digit is zero.
After 5562, the smallest possible number that ends with zero is 5570.
Therefore, the smallest number that should be added to 5562 so that the ones digit is '0' is 8.
Since, 5562 + 8 = 5570.