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Answer the following questions with appropriate unit


(I)  

train

(a) Calculate the average speed of the train for the entire journey of 45 km.

(b) What is the speeds for  0-15 km, 15-20 km and 20-45 km of the journey? Are they same?



 

(II)



 
[Contributed by administrator on 10. Januar 2018 21:47:03]


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