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?


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Answer:

4

Step by Step Explanation:
  1. We know that when a number is divided by 5 the last digit could be the remainder itself(4) or 5 + remainder (9) .
  2. 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 .

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