Mr. Rohit goes to his office everyday by train and bus. During his journey he travels 40 km by bus in two hours and 60 km by train in 1 hour. He returns to his home in the same manner and covering the same distance in same time. Find(a) the total distance covered during the whole journey.(b) the average speed for the whole journey.(c) the average velocity for the whole journey.(d) the total displacement.
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Let the speed of the train be x km/hr and the speed of the bus is y km/hr.
So according to question and using Time=
Speed
Distance
Total distance =300 km
x
60
+
y
240
=4
and 100 km by train, 300−100=200 by bus, and takes 10 minutes more,
−300=−5
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