Question

The sum of the digits of a two-digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is ​

Answer 1

Answer:

36

Step-by-step explanation:

Let two digit no be 10a+b

a+b=9(given)-(1)

A/Q

10a+b+27=10b+a

10a-a+27=10b-b

9a+27=9b

9a-9b=-27

9(a-b)=9(-3)

a-b=-3

a+3=b-(2)

putting the value of (2) in (1)

a+a+3=9

2a=9-3

2a=6

a=3

putting the value of a in (1)

3+b=9

b=9-3

b=6

Two digit no=10a+b

=10×3+6

=30+6=36

Answer 2

Answer

x=3 and y=6

#Note

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