An hotel has 3 lifts , each one carries a maximum of 30 people. The Hotel has 15 floors and each floor has 5 double bedrooms.
If it takes 10 seconds for a lift to go up or down one floor , what is the minimum time it takes to empty the hotel in the morning if everyone arrives at the lifts at the same time and the hotel is full.
(Answer in next weeks magazine)
I hate it when they do that
If it takes 10 seconds for a lift to go up or down one floor , what is the minimum time it takes to empty the hotel in the morning if everyone arrives at the lifts at the same time and the hotel is full.
(Answer in next weeks magazine)
I hate it when they do that
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