Question

A bus travels first 120km of a trip at a speed of 40km per hour .What should be the speed for the next 480km so that average speed of the bus is 60km/hr?
answer asap pls

Answer 1

Answer:

480/7 km/hr

Step-by-step explanation:

Let x be the speed for next 480 km

total time=3+x

avg speed=( 120+480)/(3+x)=60

600=60(3+x)

10=3+x

x=7 hrs

speed =480/7 km/hr

Answer 2

Answer:

480/7

KM/HR

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