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Mr. James’ class has a ratio of 2 boys to 3 girls.
Ms. Singh’s class has a ratio of 1 girl to 2 boys.
Both classes have 30 students.
How many boys and girls are in each class?

 Oct 15, 2020
 #1
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Mr.James' class:

2 / [2+3] x 30 = 12 boys

3 / [2+3] x 30 = 18 girls

 

Mr. Singh's class:

1 /[1+2] x 30 = 10 girls

2/[1+2] x 30 = 20 boys.

 
 Oct 15, 2020

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