Question

The sum of a 2 digit number is 6, on reversing it's digits , the new number is 18 less than the original number. Find the number.


My answer is 42 , just want to check if I am right

Answer 1

Answer:

42

Step-by-step explanation:

let that number be ab=10*a+1*b

a+b=6

10*a+1*b-10*b-1*a=18

10(a-b)-1(a-b)=18

(a-b)9=18

a-b=2

2a=8

a=4

b=2