The sum of three numbers is 54. The third number is 2 times the second. The second number is 10 more than the first. What are the numbers?

8, 18 and 36 respectively.

explanation

sum=54

1st number=x

2nd number=x+10

3rd number = 2 (x+10) = 2x+20

x+x+10+2x+20=54

put the liketerms together

x+x+2x=54-10-20

4x=24

divide both sides by 4 to get

x=8

Input the other values