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Math

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It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?

  • Math -

    Let hundreds digit = x, then tens = x+5 and ones digit = 4x.

    x + (x+5) + 4x = 17

    Caculate for x, then x+5 and 4x.

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