Question

30% of the students of a school are girls. 20% of boys can play cricket. Find the number of girls if 84 boys can play cricket.​

Answer 1

Answer:

120

Step-by-step explanation:

Let number of students be x

No. of girls = 30% of x

= 30/100 ×( x)

= 3x/10

No. of boys= x - (3x/10)

= 7x/10

20% can play cricket, and are 84 in no.

20% of boys = 84

=>(20/100) × (7x/10) = 84

=> 7x = 840

=> x= 120

Hence, No. of students = x = 120