Question

The distance from city A to B is 100 kilometers. A bus covers 60 kilometers in 80 minutes. At what speed must the bus travel so as to reach the destination in another 80 minutes (That is the total travel time is 160 minutes).

Answer 1

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Answer 2

Answer:

The bus must travel at 0.5 km / min to cover the remaining distance in 80 minutes.

Step-by-step explanation:

Total distance = 100 km

Distance already covered  = 60 km

Therefore the distance left to be covered = 100 km - 60 km

                                                                      = 40 km

Now, the bus has to reach the destination in 80 minutes.

We need to find the speed with which the bus must travel.

We know that speed = $\frac{Distance}{Time}$

On substituting the values, we get,

Speed = $\frac{40}{80}$

           = $\frac{1}{2}$

Therefore, the bus must travel at 0.5 km / min to cover the remaining distance in 80 minutes.