Question

A truck covers a distance of 368 km at a certain speed in 8 hours . How much time would a car take at an average speed which is 18km/hr more than of the speed of the truck to cover a distance which is 16 km more than that travelled by the truck ?
A. 7 hrs
B. 5 hrs
C. 6 hrs
D. 8 hrs

Answer 1

Correct Answer - C
Average speed of truck = 368/8 = 46 km/hr
Average speed of car = 46 + 18 = 64 km/hr
Distance travelled by car = 368 + 16 = 384 km
Time taken by car = 384/64 = 6 hrs .