SOLUTION: What is the number that must be added to 100 and to 20(the same number to each) so that sums are in the ratio of 3:1?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: What is the number that must be added to 100 and to 20(the same number to each) so that sums are in the ratio of 3:1?       Log On


   

Question 1136745: What is the number that must be added to 100 and to 20(the same number to each) so that sums are in the ratio of 3:1?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the number that must be added to 100 and to 20(the same number to each) so that sums are in the ratio of 3:1?
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Add n
100+n = 3*(20+n)
Solve for n.