Badri planned to travel to his favorite destination in three different modes.He travels 50 km by car,at a speed pf 70km/hr.He covers next 100km by train at 150 km/hr and rest 400 km,he covers by flight travelling at a speed of 800 km/hr.What is the average speed during the journey
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The average speed will be 292.4 Km/hr. Please let me know if i am wrong.
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