SOLUTION: In a certain class, the ratio of passing grades to failing grades is 7 to 5. How many of the 36 students failed the course?

SOLUTION: In a certain class, the ratio of passing grades to failing grades is 7 to 5. How many of the 36 students failed the course?

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Question 1157719: In a certain class, the ratio of passing grades to failing grades is 7 to 5. How many of the 36 students failed the course?
Answer by ikleyn(52835) (Show Source): You can put this solution on YOUR website!
.


The answer is   =  = 5*3 = 15 failed.

This simple problem deserves to be solved in one line.

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