The average speed of a car is 1 4/5 times the avg speed of a bike. A tractor covers 575km in 23hrs. How much distance will the car cover in 4hrs if the speed of the bike is twice speed of the tractor? Choose the correct choice:
A) 340 km
B) 480 km
C) 360 km
D) 450 km
E) None of these
Sol. Average speed of a tractor = 25 km / h   The speed of a bus in an hour = 25 × 2 = 50 km   The speed of a car in an hour = 9/5 * 50= 
<gadget id="calculator">9/5 * 50</gadget>
<output>90</output>
90 km   So, the distance covered by car in 4 h is   90 × 4= 360 km   Ans.(360 km)
<result>C</result>
The average speed of a car is 1 4/5 times the avg speed of a bike. A tractor covers 575km in 23hrs. How much distance will the car cover in 4hrs if the speed of the bike is twice speed of the tractor?