Ashish travels from city A to city B with an average speed of X km/h on a straight road. And return
to city A with an average velocity of Y km/h. Calculate average velocity and average speed for
whole journey
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Answer:
Let the distance between the two cities A and B be x m.
Time taken by the train to travel from A to B =
10
x
= t
1
(say)
Time taken to come back from B to A =
20
x
= t
2
(say)
Average speed =
Totaltime
Totaldistance
=
t
1
+t
2
x+x
=
10
x
+
20
x
2x
=
3
40
ms
−1
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