an elevator descends into a mine shaft at a speed of 6 metre per minute. If the descent starts from 20 meters above the ground level, how much time will it take to reach -370 metres
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Answer:
1 hr 5 min
Step-by-step explanation:
min taken to descend 6 meters = 1 minute
min taken to descend 370+20 Meters =390 / 6
= 65 min = 1hr 5 minute
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