Question

In a case of 42 students, the no. of boys is 2/5 of the girls .find the no. of boys and girls in the class​

Answer 1

Answer:

No. of girls = 30

No. of boys = 12

Step-by-step explanation:

Let the number of girls in the class be x

According to question no. of boys = 2/5×x

Given

No.of boys + No.of girls = 42

2/5 × x + x = 42

2x/5 + x = 42

2x + 5x/5 = 42

7x/5 = 42

7x = 42×5

x = 210/7

x = 30

so the no.of girls in the class is 30

and no.of boys = 2/5×30

= 12