Question

12. The sum of the 1st and 2nd digits of a 3 digit number is 10. The sum of the 2nd and 3rd digits

is 15. If 2 is subtracted from the sum of all the 3 digits and then the resulting answer is

squared, you arrive at the original number. What is the original number?​

Answer 1

Answer:

x+2x+3x=10

x+15=10

x+15-2=10

x+13=10

13-10=x

x=3