A man covers first 112 km of his journey in 56 km/hr, next 105 km in 10 km /hr and the last 68 km in one hour. Find his average speed during the whole journey.
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Step-by-step explanation:
average speed =total speed/3
in 68km journey speed is 68kmph
average speed =56+10+68/3kmph
average speed =134/3kmph
average speed =44.6kmph
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