Question

The sum of three consecutive counting numbers is 15 more than the greatest

of them. What is the greatest of the three numbers?​

Answer 1

9

Explanation:

x+x+1+x+2 = 15+x+2

3x+3=x+17

3x=x+14

2x=14

x=7

7+8+9=24

9+15 = 24