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19 August, 19:10

I am a 2 digit number the sum of my digits is 12. the ones digit is twice the tens digit? who am i?

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  1. 19 August, 19:35
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    84

    Step-by-step explanation:

    let a be the 1's digit and b the 10's digit, then

    a = 2b ← twice the 10's digit, thus

    sum = 2b + b = 12, that is

    3b = 12 (divide both sides by 3)

    b = 4

    and a = 2b = 2 * 4 = 8

    The 2 digit number is 84
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