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Question
A train travels with a speed of 20 m/s in the first 10 minutes, goes 8.5 kms in the next 10 minutes, 11 kms in the next 10 minutes, 8.5 kms in the next 10 and 6 kms in the next 10 minutes. What is the average speed of the train in kilometer per hour for the journey described?
Options
42 km ph
35.8 km ph
55.2 km ph
46 km ph
MCQ
Solution
55.2 km ph
Explanation:
Total Distance = (12+8.5+11 8.5+6) = 46 km
Total Time = 50 min
Average speed`=(46xx60)/50` = 55.2 km/hr
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Time, Speed and Distance (Entrance Exam)
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