The temperature in a city was −6°C at midnight and rose steadily by 3°C every hour. What was the temperature after 5 hours?
- A.6°C
- B.9°C ✓
- C.12°C
- D.15°C
Explanation: −6 + (3×5) = −6 + 15 = 9°C.
Class 6 IMO Mathematics Olympiad practice · HOTS / Achievers · Multi-Concept Achievers
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