Jan 15, 2017 14:49
In a desperate attempt to bring life to a seemingly moribund social media platform (Should I get a Tumblr or something? Suggestions?), here's a classic puzzle!
There are two ladders in the mouth of an alley. One has its bottom end at the base of the left wall; its top end reaches 10 feet up the right wall. The other has its bottom end at the base of the right wall; its top end reaches 15 feet up the left wall.
(The puzzle; medium-easy). At what height do the ladders cross?