Question

In a class of 80 children, 25% are girls. The number of boys in the class is .

• A. 20
• B. 60
• C. 50
• D. 40

Answer 1

The correct option is B 60

Number of children in the class = 80
Total number of girls in the class = 25% of 80
= $\frac{25}{100}\times 80$
= $\frac{1}{4}\times 80=20$
Total number of girls in the class = 20
Total number of boys in the class
= 80 - 20 = 60