A train travels from station Z to Y with a speed of 36 km/h.Abd returns to A with a speed of 54 km/h.What is the average speed?
pratyush4211:
Please tell ans is 21.6 km/h fatly
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Take Distance X
Speed is given
Find time in both cases
Add its total distance=2x
Total time=5x/108
Average speed=Total distance/Total time
2x/5x/108
Speed=43.2 km/h
Speed is given
Find time in both cases
Add its total distance=2x
Total time=5x/108
Average speed=Total distance/Total time
2x/5x/108
Speed=43.2 km/h
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