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प्रश्न
A person crosses a 600m long street in 5 min. What is his speed in km per hour?
विकल्प
3.6
7.2
8.4
10
MCQ
उत्तर
7.2
Explanation:
Speed = `(600/(5xx60))`m/s = 2m/s
= `(2xx18/5)`km/h
= 7.2 km/h
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Time, Speed and Distance (Entrance Exam)
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