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A motor cycle covers a distance of 140 m in 18 seconds. Find its speed per hour in kms?1. 32 km/hr2. 24 km/hr3. 18 km/hr4. 28 km/hr

Answer» Correct Answer - Option 4 : 28 km/hr

Given:

Distance covered = 140 m

Time = 18 seconds

Formula used:

Speed = Distance/Time taken

Calculation:

Speed = 140/18 m/s

⇒ 70/9 m/s

⇒ (70/9) × (18/5) km/hr

⇒ 28 km/hr

∴ The speed per hour is 28 km/hr 



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