A person travels 600 kilometre train at 80 km per hour 800 km by ship at 400 km per hour and 800 km by car at 50 km per hour what is the average speed of the entire distance?
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Answer:
Avg. speed=TotalDistanceTotalTime
=600+800+10060080+800400+10050
=1500×223
=300023
=1301023 km/hr
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