sheetal goes to the market with an average speed of 24 km/ h and returns a bit faster with speed of 30 km/h what is the less average speed of entire journey
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Answered by
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Answer:
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Answered by
4
Answer:
Explanation:
Formula for average speed is = total distance/total time
now, let the distance be = x (for each side)
then total distance = x+x = 2x
we know that ,distance = speed * time
then, time = distance/speed
time taken to travel first distance = x/24
time taken to come back = x/360
total time = x/24 + x/360
now put this figures in the formula of average speed and we will get = 2x / (x/24 + x/30)
solve the equation by taking L.C.M
and we will get average speed which is
26.66km/hr
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