Total Journey is of 600 km. A bus travels first 120 km of trip at speed of 40 km per hour. What should be speed for next 480 km so that average speed is 60 km/hour? ​

Answers 1

Time = distance/speed

t1 = 120/40

t1=3 hours

Total time taken = distance/speed = 600/60 = 10 hours

time left =10-3=7 hours

required speed = distance/ time =480/7 =68.57

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