A steamer goes down stream from one point to another in 7 hour it covers the same distance upstream in 8 hour if the speed of the stream in still water and distance between the points 2
Abdul while driving to School computes the average speed for his trip to be e 20 km per hour on his return trip along the same route there is less traffic and the average speed is 30 km per hour what is the average speed for Abdul strip
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