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There were 5 more members in the Choir than in the Robotics Club. There were 32 girls in the Choir Club and 19 girls in the Robotics Club. The number of boys in the Choir Club was 5/7 the number of boys in the Robotics Club. How many members were there in Choir Club?

 Sep 25, 2021

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 #1
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Let Cg = number of girls in Choir club; Cb = number of boys in Choir club

      

    Rg = number of girls in Robotics club; Rb = number of boys in Robotics club

 

We are told

Cg = 32

Rg = 19

Cb = Rb*5/7

Cg + Cb = Rg + Rb + 5

 

Can you take it from here?

 Sep 27, 2021
 #2
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