Question

A number contains of 2 digits. Sum of the digits is 9. If 9 is subtracted from the number, the digits are reversed. Find the numbrts.

Answer 1

Step-by-step explanation:

Let the unit place of number be x

then ten's place = 9-x

number= 10(9-x)+x

= 90-10x+x

= 90-9x

According to question,

(90-9x) - 9 = 10x + 9 -x

Or, 81-9x = 9x + 9

Or, 18x = 72

Or, x =4

Hence number = 90- 9x

= 90- 9*4

= 90-36

=54

MARK AS BRAINLIST ANSWER