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11 October, 02:12

A mystery number is a factor of 100 and a common multiple

of 2 and 5. The sum of its digits is 5. What is the number?

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Answers (1)
  1. 11 October, 02:40
    0
    50

    Step-by-step explanation:

    The number is a common multiple of 2 and 5, which means it is a multiple of 10. So the last digit is 0.

    The sum of the digits is 5. The number is a factor of 100, so the only possible solution is 50.
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