Question

A number consists of two digits whose sum is 9. If 27 is subtracted from the number its
digits are reversed. Find the number.​

Answer 1

Step-by-step explanation:

Let the number =ab=10a+b

Sum of digits =9

a+b=9

number −27=number with reversrd digits

10a+b−27=10b+a

9(a−b)=27

a−b=3

(a+b)+(a−b)=9+3⇒a=6,b=3

∴ Required number is 63

Answer 2

Answer:

x y

x + y = 9

x y - 27 = yx

Possible> 54,63,72,81

54 - 27 = 27

63 - 27 = 36

So, 63 is the answer mate

Step-by-step explanation: