Question

a number consist of two digits whose sum is 9 if27 is subtracted from the number it's digits are reversed

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Answer 1

Answer:

63

Step-by-step explanation:

let the tens digit be x and one's digit be y

the number will be 10x+y

x+y=9 ...... (1)

10x+y-27=10y+x

9x-9y=27

9(x-y=3)

x-y=3 .......(2)

adding equation (1) and (2)

2x=12

x=6

y=3

the required number is 60+3=63