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One fourth of a journey is covered at the rate of 50 km/h, one third at the rate of 60 km/h and the rest
One fourth of a journey is covered at the rate of 50 km/h, one third at the rate of 60 km/h and the rest at the rate of 100km/h. Find the average speed for the whole journey. 1800 1. km/h 63 1800 km/h 2. 53 3600 km/h 53 360 4. km/h 53 5. None of these 3.
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Let total distence toavelled by body xkm Time taken to bavel distance is t S Vs Speed giren to ...
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Algebra and Trigonometry
Authors: Ron Larson
10th edition
9781337514255, 1337271179, 133751425X, 978-1337271172
