A lift descends at the rate of two floors per minute. How much time will it take to reach the ground floor if it starts from the 12th floor?
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6
Answer:
6 min
Step-by-step explanation:
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Considering the elevator to be at constant speed and the destination to be 350 m below ground level,
The elevator has to travel 10m till the ground, then 350 m more.
So, the total distance to travel is 360 m
If the elevator's speed is 6 metres/minute,
Then
Time= Distance/Speed
= 360/6
=60 minutes
=1 hour
Thus the elevator would take 1 hour to reach its destination.
The elevator has to travel 10m till the ground, then 350 m more.
So, the total distance to travel is 360 m
If the elevator's speed is 6 metres/minute,
Then
Time= Distance/Speed
= 360/6
=60 minutes
=1 hour
Thus the elevator would take 1 hour to reach its destination.
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