2 Answers

Grzegorz Pawlik · Answer 1 · 2016-11-16T10:06:59+0000

There are x girls in the group.
There are three times as many boys as girls, so the number of boys is 3x.
There are 48 children in the group.

$x+3x=48 \\ 4x=48 \\ x=(48)/(4) \\ x=12$

There are 12 girls in the group.

Hunterc · Answer 2 · 2016-11-18T11:16:37+0000

if x=girls,
then we have 3x boys.

We know that all children are boys+girls, so x+3x, which is 4x and 4x is 48, so one x is 12.

So there are 12 girls and 36 boys.

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