Question

40% of students in a classroom are girls. If there are 90 students in the class, how many of them are boys?

• A. 30
• B. 20
• C. 40
• D. 10

Answer 1

The correct option is A 30

Total Students=90,
Total number of girls=Percentage of girls*Total number of students.
=$\frac{40}{100}\times 90$
=36.
Therefore,number of boys=Total number of students-Total number of girls
=90-36
=54