Question

the sum of the digits of a 2 digit number is 9.if 27 is added to it, the digits of the numbers get reversed. find the numbers​

Answer 1

The possibilities are: 18, 27, 36, 45, 54, 63, 72, & 81. A quick addition of 27 to each possiblbiliy gives 18+27= 45, 27+27=54, 36+27=63 and 63 is the reverse of 36.

Answer 2

Answer:

let the number be xy

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

(10x+y)+27=10y+x

10x-x+y-10y=-27

9x-9y=-27

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

add equation 1 and 2

we get

x=3

substitute it in eq 1

y=6

so the number is 36

Step-by-step explanation:

hope it may helps u dear...