A car travels 50 km with a speed of 5 km/hr, then it travels 36 km with a speed of 5m/s, then it travels 54 km at a speed of 7.5 m/s. Find the average speed of the car?
• 7.5 m/s
• 10 m/s
• 3.6 m/s
•25/9 m/s
give me the correct answer
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