Question

We sue
10. A number consists of two digits whose sum is 10. If 18 is subtracted
from the number, its digits are reversed. Find the number.​

Answer 1

Answer:

let the 2 digits be x and y

Step-by-step explanation:

original no . = 10x + y

x + y = 10----(1)

acc. to q,

(10x + y) - 18 = 10y + x

9x - 9y = 18 => x - y = 2 ---(2)

on adding (1)&(2)

2x = 12 => x = 6

from (1) 6 + y = 10

y = 4

number = 10x + y = 10(6)+4= 64 Answer