Mathematics

A number of two digits is increased by 9. When the digits are reversed, the sum of the digits is 5. Find the number.

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  1. Paste your question in google.

    You will se couple answers.

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  2. let's work backwards,
    by looking at the number after it was reversed.
    Since the sum of the digits is 5
    it could only be
    14, 41, 23, or 32
    but that result is caused by having added a 9
    so the original number could only be:

    9 , not a two digit number, so NO
    32
    14
    23

    So the number could have been 32, 14, or 23

    check:
    32+9 = 41, sum of digits is 5
    14+9 = 23, sum of digits is 5
    23+9 = 32, sum of digits is 5

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