Question

the sum of the digit of number is 12. if the new number formed by reversing the digit is greater than the original number by 54 find the original number

Answer 1

Hey^^ here's ur answer..

Let the number be xy

X+ y =12 (given )

X=12 - y

●》

yx=xy +54 (given)

10y + x = 10x + y + 54

10y + x - 10x - y =54

9y -9x =54

9 (y-x) = 54

Y-x =6

Y-12 +y =6

Y=9

X=3

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