Question

In a group of 45 children there are twice as many boys to girls. how many girls are there

Answer 1

There were 15 girls.
Set a system of equation x=girl and y=boy
So x+y=45
2x=y
if you solve you'll get x=15 And y=30

Answer 2

15 because if you divide 45 from 3 (indicating there is more boys) youll get 15 i hope this is right and it helps