A person travels along a straight road for the first haf time with a velochy 20kmph and the
second half time with a velocity 40kmph Then the mean velocty is gren by
1) 30km
2) 20kmph
3) 10kmph
4)90kmph
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Answer:
90 kmph is the answer of this question
Answered by
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Answer:
90kmph is thecorrect answer mark me as brainliest
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