The distance from Patna to Ranchi is 260 km by air and 320 km by road. An aeroplane requires 30 minutes to travel from Patna to Ranchi, while a delux bus takes 8 hours. Determine the average speed of the bus in km/h.

Question

Quantrex Academy · Accepted Answer

Correct answer: A. 40

The total distance covered by the bus by road is

d = 320 \text{ km}

.

The total time taken by the bus is

t = 8 \text{ h}

.

The average speed of the bus is given by the ratio of total distance to total time:

\text{Average speed} = \dfrac{d}{t}

\text{Average speed} = \dfrac{320}{8} = 40 \text{ km/h}

The distance from Patna to Ranchi is 260 km by air and 320 km by...

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