Question

I want answers for 1st question

Answer 1

Answer:

Number of boys is 70

Step-by-step explanation:

Ratio = 3:7

Let number of girls = 3x

Let number of boys = 7x

Since total number of girls is 30

3x = 30

x = 10

And number of boys = 7x = 7 X 10

                                   = 70

Answer 2

the ratio of girls is 3:7

the ratio of boys is 70