Answers

2015-03-10T20:49:17+05:30
No of floors from 3 to 15 = 13
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

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