Question

. There are 30 students in a class. For every 2 boys, there are 3 girls.
What is the number of boys and girls in the class?​

Answer 1

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There are 30 students in a class. For every 2 boys, there are 3 girls.

What is the number of boys and girls in the class ?

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There are 20 boys in the class .

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It is given that in grade 6 there are 3 girls for every 2 boys .

so we can represent the ratio of girls to boys as 3/2 = 3:2

again there are 30 girls in the class .

let there be x number of boys in the class .

so , the ratio of girls to boys become = 30/x = 30:x

this is equal to 3 :2 .

thus , 30/x = 3 : 2

=> 3x = 60

=> x = 60/3 = 20

number of boys , x = 20 .

Answer 2

Answer:

so 2:3

so totally 5 parts

30/5 = 6

1 part = 6

so no. of boys = 2 parts = 12

no. of girls = 2 parts = 18

hope helpful mate