Question

A positive number consists of two digits. The sum of digits is 9. If 27 is added to the number, then digits of the number are reversed. What is the number?​

Answer 1

36

Explanation:

we know it's greater than 10 and the sum of the digits are 9 so

18

27

36

45

54

63

72

81

Now by typing these out you'll be able to find the reverse that has a difference of 27 and pick the smaller number.

So 36