Question

one-third of the boys and one half of the girls of a college participated in a social work project . if the number of participating students is 300 out of which 100 are boys . What is the total number of students in the college ?​

Answer 1

Step-by-step explanation:

let the total no. of boys be x and of girls be y

x/3 = 100

x=300

300= x/3 + y/2

300= 100 + y/2

y/2 = 200

y= 400

Thus, total no. of students = x+y

= 300+400= 700