Question

15. A number consists of two digits. When it is divided by the sum of the digits, the quotient is 7. If 27 is subtracted from the number, the digits are reversed. Find the number.

Answer 1

Answer:

63

Step-by-step explanation:

Let the no. be 10x+y,

9x-9y=27---------------1

9x-18y=0----------------2

(-9+18)y=27

9y=27

y=3

9x-27=27

9x=27+27=54

x=54/9=6

=>the number is 63