A train travels along a strait line at a constant speed of 60mi/h for a distance D and then another distance equal to 2D in a same direction at a constant speed of 80mi/h.What is the average speed if the train for the whole journey
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Haven't they
seen the picture. Passive voice of Interrogative sentences
Haven't they
seen the picture. Passive voice of Interrogative sentences
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0
Answer:
280 mark as brainlest t. h.
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