Question

The sum of the digit of a 2-digit number is 9. if the number by reversing the digits is 27 than the original number,find the original number.

Answer 1

the answer is equal to 63 or 36

Answer 2

Answer:

Step-by-step explanation:

Let us assume x is a tenth place digit and y is unit place digit

Therefore the two digit no. = 10x + y and the reversed = 10y +x

Given,

Y =2 x ----------1

Also given

10x + y + 27 = 10y +x

9y - 9x =27

Y-x = 3

Substitute the equation equation 1 from equation 2

2= 2x - x = 3

Therefore y = 2x = 2*3 = 6

The two digit number = 10x +y =10 * 3 +6 = 36

After add 27 = 36+27 = 63 (reversed of 36)