Question

a number has 2 digits whose sum is 8. If 18 is added to the number, its digits are reversed.Find the number.​

Answer 1

Answer:

Let digits be x and y

Number = 10x+y

Reversed Number = 10y+x

As per ques.

x+y = 8 --- (i)

10x+y +18 = 10y+x

=> 9x-9y = -18

=> x-y = -2 ----(ii)

Adding (i) and (ii)

2x =6

x=3

so y =5

so number is 35 I hope it will help you mark it as a brainliest answer

Answer 2

Answer:

35

Step-by-step explanation:

let digits x and 8-x

given

$\: \: \: \: \: \: \: \: 10x + (8 - x) + 18 = 10(8 - x) + x \\\implies \: 18x = 54\implies \: x = 3$

so Number is 35