which of the following cannot bethe difference between a two dicitnumb – InterviewSolution

1.	which of the following cannot bethe difference between a two dicitnumber and the number obtainedinterchanging the digits?A 72(6) 360 54CD) 48.
Answer» Let the number be 10x + y.The reversed number will be 10y + x.Difference = (10x + y) - (10y + x) = 9x - 9y = 9(x - y)The difference should be a multiple of 9.Thus, 48 cannot be the difference.

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