Question

The sum of the digits of a two-digit number is 15. If the number formed by
reversing the digits is less than the original number by 27, find the original
number. Check your solution.
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Answer 1

answer: 63

Step-by-step explanation:

let the ones digit be x

then the tens digit is 9 - x

original number is -

(9-x).10+x

90-10x+x

90-9x

number formed when digits are reversed :

x.10+9-x

10x-x+9

9x+9

according to the question :

9x+9+27=90-9x

9x+36=90-9x

9x+9x=90-36

18x =54

x=54/18

x=3

thus , original number is 90-9x i.e. 90-27=63

Answer 2

It may help you

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