Q: 3. A bus travels 200 m in 30s. What is its speed in km/h.
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Distance travelled = 200 m.
Time taken = 30 s.
Speed = Distance/Time = 200/30 = 20/3 m/s.
To convert m/s into Km/hr just multiply the speed with 18/5.
Speed (in km/hr) = 20/3 × 18/5 = 24 Km/hr.
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