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Grade: 11
        two trains 75 km apart from each other on parallel tracks each moving at 75 mph. a bird flies back and forth between the trains at 20 kmph until the train pass each other . how far does the bird fly
2 years ago

Answers : (1)

Hadiya
20 Points
							Let the trains meet in t time. Total distance equal to 75 km.Total distance equal to distance travelled by first train + distance travelled by second train.Distance equal to speed ×time.75t÷1000+75t÷1000=75km.t=5000hDistance travelled by the bird =speed of the bird × time time in which the trains meet.=20×500=1000km.
						
2 years ago
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