1.

A car takes 2 hours to travel from one city to another and 3 hours on the way back. If the distancebetween the cities is 200 km, calculate the average speed of the car.

Answer»

ANSWER:

Speed of car for GOING from the city to ANOTHER = Distance / Time

= 200/2 = 100km/hr

Speed of car for coming BACK to city = Distance / Time

=  200/3 km/hr

Average speed = (100 + 200/3) / 2  

= 500/3/2

= 500/3*2 = 500/6

= 83.33 km / hr Ans.



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