Question 105

A person travels the first 100km of his journey at 25km/hr and the next 200km at 40km/hr. Find the average speed of a person during his entire journey.

Solution

Average speed = (Total Distance travelled)/(Total time taken)
= (100+200)/(100/25 + 200/40) = 300/(4+5) = 100/3 = 33.33km/hr

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