Question

Rahim travelled 350 km in a train and 150 km in a bus .the average speed of train was 70 km the bus trip lasted 5 h .what is average speed of entire trip

Answer 1

Avg. Speed = Total Distance traveled / Total time taken

Answer 2

Answer:

9.09 km/hr

Step-by-step explanation:

Distance traveled by train = 350 km

Speed of train = 70 km/hr

Time by train= $\frac{distance}{Speed}=\frac{350}{70}$

Distance traveled by bus = 150 km

Time by bus = 5 hours

Average speed = $\frac{\text{Total distance}}{\text{Total time}}$

Average speed = $\frac{350+150}{\frac{350}{7}+ 5 }$

Average speed = $9.09 km/hr$

Hence average speed of entire trip is 9.09 km/hr