# Every floor of a 20 storey building is 5 meter high. If a lift moves 2 meter every second. How long will it take to move from 3rd floor to 15th floor?

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distance between each floor = 5m

speed of lift = 2m/sec

distance between 3rd floor to 15th floor = 5 * 13 = 65m

time = distance/ speed

time = 65/2

time = 32.5 seconds it would take the lift 32.5 seconds to move from 3rd floor to 15th floor