Question

9. Ravi is cycling at a speed of 9 km/h alongside a
railway track. A train travelling in the opposite
direction at a speed of 63 km/h passes him in
13 seconds. What is the length of the train?
0. The speed of a boat in still water is 14 km/h.
If the boat travels 90 km upstream in 7​

Answer 1

Answer:

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