Question
If a car covers 2/5th of the total distance with v1 speed and 3/5th distance with v2 then average speed is
Options :
(1/2)√(v1v2)
(v1+v2)/2
2v1v2/(v1+v2)
5v1v2/(3v1+2v2)
Answer :
5v1v2/(3v1+2v2)
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