Total animals = 80. Cats : Dogs = 3 : 5.
[[model:questions/solutions/q10502.png]]
Total units = 3 + 5 = 8 units
• 8 units → 80
• 1 unit → 80 ÷ 8 = 10
• Cats = 3 units = 3 × 10 = 30
• Dogs = 5 units = 5 × 10 = 50
Now find adults in each group:
Cats — kittens : adults = 2 : 1, so adult cats = \( \frac{1}{3} \) × 30 = 10
Dogs — puppies : adults = 3 : 2, so adult dogs = \( \frac{2}{5} \) × 50 = 20
Total adult animals = 10 + 20 = 30
Check: Kittens = 20, puppies = 30. 10 + 20 + 20 + 30 = 80. ✓
Final Answer: 30