Question

4. The sum of a 2-digit number is 9. If the number formed by reversing the digits is
less than the original number by 9. The original number is
( )
(a) 54
(b) 45
(c) 60
​

Answer 1

Answer:

b. 45

Step-by-step explanation:

Answer 2

Answer:

60

Step-by-step explanation:

When the digits of a two-digit number are reversed, the new number is 36 more than the original number. The units digit is twice the tens digit.