Question

Sum of the digits of a 2- digit number is 10 . the number is decreased by 36 if the digits are reversed. Find the number

Answer 1

x+y=10

10x+y-36=10y+x

x=10-y

10(10-y)+y-36=10y+10-y

100-10y+y-36=9y+10

64-9y=9y+10

18y=74

y=74/18

there is mistake in the question as digit cannot be in fraction

hope it helps