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A a multi-storey building has 25 floors above the ground level each of the height 5 metre. It also has 3 floors in the basement each of height 5 metre. A lift in the building moves at the rate of 3 metre per second if a man starts from 50 metre above the ground. Find time required to reach 2nd floor of the basement |
| Answer» A a multi-storey building has 25 floors above the ground level each of the height 5 metre. It also has 3 floors in the basement each of height 5 metre. A lift in the building moves at the rate of 3 metre per second if a man starts from 50 metre above the ground. Find time required to reach 2nd floor of the basement | |