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Jet001 [13]
3 years ago
10

In a group of 48 children there are three times as many boys as girls. how many girls are there

Mathematics
2 answers:
Leno4ka [110]3 years ago
5 0
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.
Vlad [161]3 years ago
4 0
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=\frac{48}{4} \\
x=12

There are 12 girls in the group.
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