In a certain school, the ratio of boys and girls is 7 : 5
In a certain school, the ratio of boys and girls is 7 : 5. If there are 2400 students in the school, then how many girls are there?
- 500
- 700
- 800
- 1000
Answer
Total students = 2400 and girls : boys = 5:7, so
No. of girls = 5/(5 + 7) × 2400 = 5/12 × 2400 = 5 × 200 = 1000
The correct option is D.