A truck covers a distance of 376 km at a certain speed in 8 hours. How much time would a car take at an average speed which is 18 kmph more than that of the speed of the truck to cover a distance which is 14 km more than that travelled by truck?

Question


A truck covers a distance of 376 km at a certain speed in 8 hours. How much time would a car take at an average speed which is 18 kmph more than that of the speed of the truck to cover a distance which is 14 km more than that travelled by truck?

A. 6 hours
B. 5 hours
C. 7 hours
D. 8 hours


Answer: A

Solution:

Speed of the truck = Distance/time

= 376/8

= 47 kmph

Now, speed of car = (speed of truck + 18) kmph

= (47 + 18)

= 65 kmph

Distance travelled by car = 376 + 14

= 390 km

Time taken by car = Distance/Speed

= 390/65

= 6 hours.

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