An elevator descends in to mine shaft at the rate of 7m per Minute. If the descends start from 5m above the ground level, how long it will take to reach-205m ?
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Answer:
30 min.
Step-by-step explanation:
Speed of the elevator= 7m/min.
Total distance= 205+5 m = 210 m.
Time taken= 210/7
= 30 min
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