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Half of the students in a class are 12 years old or less and one-sixth are 13 years old or more. The number of students that are between 12 and 13 years old is 5 more than the number of students that are 13 years old or more. How many students are between 12 and 13 years old?

 Apr 15, 2021
edited by MathyGoo13  Apr 15, 2021

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 #1
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This is not all that hard.

Let x be  the number of students in the class

so  x/2  are less than 12

x/6 are  are older than 13

So what fraction are between 12 and 13?

 

Can you take it from there?  Show us what you can do?

 Apr 16, 2021

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