Question

There are 150 students in
one class. How
students
many
are there in g such classes
There are
students
in total​

Answer 1

Answer:

I’ll try to explain in a simple way.

See there are 150 students in a class and out of which their are 2/5 girls means total no. Of students are divided into 5 parts out of which 2 parts are girls ,so first we find out that how many students are their in one part ,for that

150/5=30

Means in one part of students their are 30 students ,which means their are 60 girls (30 students*2 part) so rest students are boys.

That is 150–60=90

Direct method…

2/5 girls in 150 students means

2/5*150=60

No. Of boys :- 150–60= 90

90 boys in the class.