Question

there are 3 boys for every 4 girls in mrs smiths class if there are 28 students in the class how many girls and how many boys are there

Answer 1

ratio is 3:4
so total is 3+4=7 units
so we know the ratio for every 7 units
count hohw many 7 units there are
28/7=4
4 units
that means 4 times of each seperate unit
3 times 4=12
4 times 4=16
there are 12 boys and 16 girls

Answer 2

boys to girls ratio is 3:4 so for every 7 students 3 are boys and 4 are girls bc 3+4 is total students in the ratio. boys are 3/7 so out of 28 students there are 12 boys and girls are 4/7 so out of 28 students 16 are girls
12/28 are boys
16/28 are girls