Question

The ratio of number of boys to girls is 2:3. If the total number of students are 25 in the class, find the number of boys and girls in the class.

• A. 5 , 25
• B. 5 , 20
• C. 10 , 15
• D. 10 , 20

Answer 1

The correct option is C 10 , 15

Total number of students in the class
= 25
Ratio of boys and girls = 2:3
According to the question, $\frac{Boys}{Girls}$ = $\frac{2}{3}$
Sum of the ratio = 2 + 3 = 5
If 5 parts are equal to 25, then
1 part = 5

The number of boys = value of 2 parts = 2 x 5
= 10
The number of girls = value of 3 parts = 3 x 5
= 15
Hence,
Number of boys = 10
Number of girls = 15