Question

step by step explanation
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Answer 1

Let the tens digit be x

Let the units digit be y

The required number is 10x y

The sum of the digits is x y

Given, (10x y)/(x y) = 8

=> 10x y = 8(x y)

=> 10x y = 8x 8y

=> 10x-8x = 8y-y

=> 2x = 7y

=> 2x-7y = 0 ———-(1)

Given, x-3y = 1 => 2x-6y=2—————(2)

Solving (1) and (2),

we get x=7 and y=2

The answer is 72