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math

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A no consists of 2 digits whose product is 18 when 27 is subtracted from the no the digit inter change find the number

  • math - ,

    the digits are a,b

    a*b = 18
    10a+b - 27 = 10b + a

    a=6 b=3
    check:
    63 - 27 = 36

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