Correct Answer - Option 3 : 64%

**Given:**

Number of girls = 32

The ratio of girls and Boys = 16 : 9

**Concept:**

percentage = (part/whole) × 100

**Solution: **

Let the number = y

Then,

Girls : boys = 16y : 9y

⇒ 16y = 32

⇒ y = 2

Now (put the value of y) boys = 9 × 2 = 18

Total number girls and boys = 32 + 18 = 50

Percentage = (32/50) × 100 = 64%

**∴ The % of girls is 64%**