A body goes from point X to point Y with a speed of 10 m s-1. It comes back to X with a speed of 20 m s-1. The average speed of the body during the journey is ______.
A15 m s-1
B16.6 m s-1
C13.3 m s-1
D30 m s-1
Hi, I am a bit confused about this question... How could the answer possibly be 'C'? The answer is most obviously A... Please comment.
Ans 2:
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Ans 4:
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Class : Class 10
the answer on brainly is correct. cannot paste here- but a hint- better to use formula then logic sometimes