SOLUTION: The ratio of the number of boys to the number of girls at school is 4:5. If there are 120 boys how many students are there altogether?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: The ratio of the number of boys to the number of girls at school is 4:5. If there are 120 boys how many students are there altogether?      Log On


   

Question 934794: The ratio of the number of boys to the number of girls at school is 4:5. If there are 120 boys how many students are there altogether?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
4/5 = 120/x
x = 120/(4/5)
x = 150 number of girls
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total students:
120 + 150 = 270
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