the orginal number!e is four times the digit at units place. If 54A nu – InterviewSolution

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1.	the orginal number!e is four times the digit at units place. If 54A number has two digits. The digit at tens place isis subtracted from the number, the digits are reI n The number obtained by interchanging thetver, the digits are reversed. Find the number.
Answer» Let the number be 10x + yx = 4y . . . . . (1)10x + y - 54 = 10y + x9x - 9y = 54x - y = 6Substitute from (1)4y - y = 6 3y = 6 y = 2 x = 4 × 2 = 8The number is 82

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