An elevator descends into a mine shaft at rate of
5 m/min. If the descent starts from 10 m, how
long will it take to reach –360 m.
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Answer:
74 min
Step-by-step explanation:
1min-------->5m
? - - - - - - -> 10m
=2min
2min--------->10m
? - - - - - - - - -> 360 m
=72 min
2+72=74 min
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