If a number is divided by 5, remainder is 4. If same number is divided by 2, remainder is 0. What should be the last digit of the number?
Answer:
4
- We know that when a number is divided by 5 the last digit could be the remainder itself(4) or 5 + remainder (9) .
- We know that if remainder when number is divided by 2 is 0 , then the number is even .
Therefore the last digit of the number should be even and therefore the answer is 4 .