The distance between two station is 500 kmA train goes from one station to the other with the speed of 50 km/hr and return from a speed of 25 km/hr what is is the avrage speed of the train during the journey
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Step-by-step explanation:
GiveN:
Distance between two station is 500 km
Speed in first trip = 50 km/hr
Speed in return trip = 25 km/hr
Step-by-step Explanation:
Average speed is given by Total distance covered / Total time taken in the journey. Here,
Total distance travelled
= 500 × 2 km
= 1000 km
Time taken in trip 1:
= Distance / Speed
= 500 km / 50 km/hr
= 10 hr
Time taken in return trip:
= Distance / Speed
= 500 km / 25 km/hr
= 20 hr
Total time taken = 30 hr
Average speed of the journey:
= Total distance / Total time taken
= 1000 km / 30 hr
= 100/3 km/hr
= 33.34 km/hr (approx.))
Hence,
The average speed of the train during the journey is 33.34 km/hr. And we are done! :D
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