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A chess team has 26 members. However, only 16 members attended the last meeting: half of the girls attended but all of the boys attended. How many boys are on the chess team?

 Jun 16, 2021
 #1
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+1

We  can set up this system

 

B + G  =  26                 (1)

B + (1/2)G  =   16       ⇒  -2B  - G  =  -32       (2)

 

Add (1)  and (2)     and we have

 

-B  =  -6

 

B =  6

 

 

cool cool cool

 Jun 16, 2021

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