please fast give me a right answer with full statement
Answers
Answer:
It takes 60 seconds i.e a minute for the man to reach the 2nd floor of the basement.
Step-by-step explanation:
25 floors above the ground level each of height = 5 m
3 floors in the basement each of height = 5 m
The lift moves at the rate of 1 m/s.
25 floors above the ground each of height 5 m are = 25×5 = 125 m in total height.
The Man is 50 m above the ground level i.e = 125-50 = 75m.
75÷5=15 i.e 25-10=15. That means the Man is on the 10th floor.
The lift travels at a rate of 1 m/s.
The man has to cross 12 floors; (10 floors on the upper ground and 2 floors in the basement)
One floor = 5 m in height
Time taken to travel for one floor is 5m/1m/s
= 5 seconds
Therefore, Time taken to travel 12 floors by the Man is
= 12×5 = 60 seconds i.e 1 minute