The girls' average score is 30. The boys' average score is 24. If there are twice as many boys as girls, what is the overall average?

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The girls' average score is 30. The boys' average score is 24. If there are twice as many boys as girls, what is the overall average?

Mathematics
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what are the options
its not multiple choice
lets call the number of girls "g" then there are "2g" boys agreed so far?

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Other answers:

this is because it says "If there are twice as many boys as girls"
yes
ok, so if there are "g" girls and these girls have an average score of 30, then what would their total score be?
i have this so far
|dw:1434819390316:dw|
the denominator should be "g+b"
you can then replace the "b" with "2g"
but isn't it twice as many boys?
overall average\(=\frac{24b+30g}{b+g}\) and we know: \(b=2g\)
ok so 3g
the denominator becomes 3g yes
k and next?
similarly, replace b with 2g in the numerator
ohhhh i see
i got it
what have you got now?
26g
the "g"'s should have cancelled out
oh okay so just 26
yes - well done :)
thank youuu <333
yw :)

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