An elevator descends into a mine shaft at the rate of 5 m/min. If the descent starts from 8m above the ground level, how long will it take to reach 42 m (means -42 m) below the ground level ?
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Answer:
it takes 10 mins
because if you add 42 and 8 it comes 50 then 50 divided by 5 is equal to 10 and here is you answer
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