1.

 The average speed of a car is 1(4/5) times the average speed of a bus. A tractor covers in 575 km in 23 h. How much distance will the car cover in 4h if the speed of the bus is twice speed of the trac

A. 340 km
B. 480 km
C. 360 km
D. 450 km
Answer» D. 450 km


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