A pen has 12 animals made of chickens and rabbits. There are 40 legs. How many rabbits are there?
- A.8 ✓
- B.9
- C.7
- D.10
Explanation: If all 12 were rabbits there'd be 48 legs — 8 too many. Each chicken instead of a rabbit removes 2 legs, giving 4 chickens and 8 rabbits.
Class 6 IMO Mathematics Olympiad practice · HOTS / Achievers · Multi-Concept Achievers
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