| The average speed of a car is \[1\frac{4}{5}\]times the average speed of a bus. A tractor covers 575 km in 23 h. How much distance will the car cover in 4 h if the speed of the bus is twice speed of the tractor? |
A) 340 km
B) 480 km
C) 360 km
D) 450 km
E) None of these
Correct Answer: C
Solution :
| Average speed of tractor\[=\frac{575}{23}km/h\] |
| \[\therefore \]Speed of bus \[=2\times \frac{575}{23}\] |
| \[\therefore \]Average speed of car\[=\frac{9}{5}\times \frac{2\times 575}{23}=90\,\,km/h\] |
| \[\Rightarrow \]Distance covered in\[4\,\,h=90\times 4=360\,\,km\] |
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