# Brain Teaser: A Sliding Ladder

A 25 ft ladder (assume it is not an extension ladder) is placed with its foot 7 ft away from a building. If the top of the ladder slips down 4 ft, how many feet will the bottom slide out?

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15ft

Should be 15ft away from the building.

The answer would be 15ft.The ladder would have slipped 15 ft away from the wall.

I get 8.87 ft

The ladder slips 8 ft, making the foot 15ft from the building