1.

A train covers a distance of 450 km in 5 hr between station A and station B. What is average speed of train, (i) in km hr(ii) in ms-.

Answer»

tion:LET the return speed be x KMHR and the distance be d KM Average speed (= frac{{Total;distance}}{{Total;TIME}}) Average speed (= frac{{d; + ;d}}{{frac{d}{{60}} ...



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