SOLUTION: The sum of three numbers is 30. The second number is 3 times the first. The third number is twice the second number. What are the three numbers?

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Question 825625: The sum of three numbers is 30. The second number is 3 times the first. The third number is twice the second number. What are the three numbers?
Answer by Seutip(231) About Me  (Show Source):
You can put this solution on YOUR website!
Let
x = be the first number
3x = second number
6x= third number
30 = x + 3x + 6x
30 = 10x
x = 3
so the 1st number is 3, the second number is 9 and the third number is 18 :)