Question

A number consists of two digits whose sum is 9. If
27 is subtracted from the number, its digits get
reversed. The number is​

Answer 1

Step-by-step explanation:

Let us assume, x and y are the two digits of the two-digit number

Therefore, the two-digit number = 10x + y and reversed number = 10y + x

Given:

x+ y = 9

also given:

10x + y - 27 = 10y + x 9x - 9y = 27 =

X - y = 3 ------ -2 Adding equation 1 and equation 2

2x = 12 x = 6

Therefore, y = 9 - x = 9 6 = 3

The two-digit number = 10x + y = 10*6 + 3 = 63