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posted by TUHITUHI Monday, September 10, 2012 at 8:16am.
A no consists of 2 digits whose product is 18 when 27 is subtracted from the no the digit inter change find the number
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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