24 June, 09:35

# The Ratio of boys to girls in Ella's grade is 3 to 4The ratio of boys to girls in Minh's grade is 4 to 5Each grade has a total of 20 girls.Ella's grade has more boys than Minh's grade. True or FalseMinh's grade has more bos than Ella's grade. True or FalseElla's grade has 15 boys. True or FalseMinh's grade has 8 boys. True or False

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1. 24 June, 09:53
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a) false

b) True

c) True

d) false

Step-by-step explanation:

Ratio of boys to girls = 3:4

Total number of boys and girls = 3+4 = 7

Since Each grade has a total of 20 girls.

Let total number of boys and girls = x

Proportion of girls: (4/7) * x = 20

4x/7 = 20

x = 35

Total number of boys and girls = 35

Number of boys = 35-20 = 15 boys

Ratio of boys to girls = 4:5

Total number of boys and girls = 4+5 = 9

Let total number of boys and girls = x

Proportion of girls: (5/9) * x = 20

5x/9 = 20

x = 36

Total number of boys and girls = 36

Number of boys = 36-20 = 16 boys

15 boys < 16boys = boys in Ella's grade < boys in Minh's grade

False