QThe difference between a two-digit number and the number obtained by – InterviewSolution

1.	QThe difference between a two-digit number and the number obtained by reversing the digits is 18. What is the difference between the digits of the number?
Answer» Let the tens place digit be aAnd UNIT place be bNumber = 10a + bReversed number = 10B + a(10a +b) - (10b +a) = 27=> 10a +b - 10b - a = 27=> 9a - 9B = 27=> a - b = 3Difference of digits = 3

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