Question

in a class of 42 students the number of boys is 2/5 of the girls. find the number of boys and girls in the girls​

Answer 1

Answer:

girls = 30, boys = 12

Step-by-step explanation:

let there are X girls

number of boys = 2/5 of X

total number of students = 7x/5

A.T.P

7x/5= 42

X = 42*5/7

= 30

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Answer 2

Answer:

Step-by-step explanation:

Let the number of girls be x

Since we are given that the number of boys is 2/5 of the girls

So, Number of boys = 2x/5

There are 42 students in total.

So, x+(2x/5)=42

7x/5=42

7x=210

x=30

Thus the number of girls is 30.

Number of boys = 2x/5=(2*30)/5=60/6=12

Thus the number of boys = 12