Question

If a lift takes 40 seconds to go to the fourth floor from the ground floor then how much time will it take to go to sixteenth floor from the fourth floor

Answer 1

120 seconds

Explanation:

if the elevator is moving at a constant rate, then it takes 10 seconds to move up one floor, to travel from the 4th to the 16th floor, it will take 120 seconds total to travel 10 floors