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1-b 1.21 (a)help

 
 
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1-b 1.21 (a)help
by eric gan - Friday, 16 June 2017, 9:17 AM
 

Is the question worded wrong? 8/17 6th graders in olympaid and 8/17 olympaid are sixth graders are two completely different things.

 
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Re: 1-b 1.21 (a)help
by Areteem Instructor - Friday, 16 June 2017, 10:19 AM
 

Hi Eric,

The question should be okay. The phrase "Among those who attend Math Olympiad Classes, $\frac{8}{17}$ are in 6th grade" means that $\frac{8}{17}$ of the students who attend Math Olympiad Classes are in 6th grade. Similarly $\frac{9}{23}$ of the students who attend Math Olympiad Classes are in 7th grade.

We also know that the middle school contains $780$ students in total. All the students in the Math Olympiad Classes go to this school.

It may seem like there isn't quite enough information to solve the problem, but as a hint, remember that there can't be a fractional amount of students!

Regards,

Areteem Staff