SOLUTION: If the ratio o freshmen to sophomores is 4:5 and there are 120 freshmen, how many sophomores are there?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If the ratio o freshmen to sophomores is 4:5 and there are 120 freshmen, how many sophomores are there?      Log On


   

Question 435062: If the ratio o freshmen to sophomores is 4:5 and there are 120 freshmen, how many sophomores are there?
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
We can set up the following proportion:
4/5=120/x
Cross multiply to get:
4x=600
x=150 sophomores
Make sense?
RJ
www.math-unlock.com