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An elevator descends into a mine shaft at the rate of of 5 m m/min.If the descent starts from 15m above the ground level,how long will it take to reach 250m?

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Answer:

An elevator descends into a MINE SHAFT at the rate of of 5 m m/min.If the DESCENT STARTS from 15m above the ground level,how long will it take to reach 250m



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