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  • A train travels 20 km at a uniform speed of 60 km/h and next 20 km at a uniform speed of 80 km/h, calculate its average speed

A train travels 20 km at a uniform speed of 60 km/h and next 20 km at a uniform speed of 80 km/h, calculate its average speed

Answers (1)

Time taken to travel 20 km at 60km/hr, t1=20/60=0.33hr
time taken to travel nxt 20 km at 80km/hr, t2=20/80=0.25hr

total distance=40 km

total time=0.58 hr
avg speed=total distance travelled / total time taken=40/0.58=68.96km/hr

Posted by

shubham.krishnan

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