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A man riding his bicycle covers 150 meters in 25 second. What is his speed in km per hour?
1. 25.3
2. 23
3. 21.6
4. 20

1 Answer

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Correct Answer - Option 3 : 21.6

Given:

Distance = 150 meters

Time = 25 seconds 

Formula used:

Speed = distance/time 

Calculation: 

Speed = 150/25 = 6 m/s 

Speed in km/hr = (6 × 18)/5  = 108/5 = 21.6

∴ Speed in km per hour is 21.6 km/hr

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