Question

in a class of 50 students 40% are girls.how many are boys in the class

Answer 1

60% of 50
ie.30 students
Hope this helps you

Answer 2

In a class of 50 students , 40% are girls.
It means that 60% of class students are boys
So,
No. Of boys = (60/100) * 50
= 6*5
= 30 students are boys in
Class