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17. There are two groups of students. There are x students in the first group and each student came make m cakes in an hour. There are y students in the first group and each student came make n cakes in an hour. How many cakes can each student make among the two groups?

Guest Nov 30, 2017
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In total group 1 makes xm cakes per hour

In total group 2 makes yn cakes per hour

so altogether they make (xm+yn) cakes per hour,

 

On average this is  (xm+yn)/(x+y) cakes per student per hour.

 

I think that is what the question is asking for but the working is not very clear....

Melody  Nov 30, 2017

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