Q. The ratio of boys to girls in a class is 5 : 4. If there are 45 students, the number of girls is
✅ Correct Answer: (B)
20
Explanation: Total parts = 9. One part = 45 ÷ 9 = 5. Girls = 4 × 5 = 20.
Explanation by: Roshan
Total parts = 9. One part = 45 ÷ 9 = 5. Girls = 4 × 5 = 20.