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The distance between A and B is 540 km.A car travels from A to B at a speed of 90 kmph.On the return journey it travels at the speed of 60 kmph.Find the average speed of the whole journey. ?->(Show Answer!)
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1. The distance between A and B is 540 km.A car travels from A to B at a speed of 90 kmph.On the return journey it travels at the speed of 60 kmph.Find the average speed of the whole journey.





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