3. A man travels 600 km by train at 80 km/hr. 800 km by ship at 40 km/hr. 500 km
by aeroplane at 400 km/hr and 100 km bycar at 50 km\hr. What is the average
speed for the entire distance
Answers
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Answer:
total distance:600+800+500+100
:2000
time taken by train:600/80
:6.25hrs
time taken by ship:800/40
:20hrs
time taken by aeroplane:500/400
:1.25hrs
time taken by car:100/50
:2hrs
total time:6.25+20+1.25+2
:29.5hrs
average speed=total distance/total time
=2000/29.5
=67.79
Explanation:
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