A at the bottom of a 30 ft well. it jumps up 3 falls back 2 each dayHow long does take for monkey to crawl out well?

It will never get out. On day 1 the monkey gains 3-2=1 ft, on day 2 it gains another 1 ft, and on day 3 it gains 1 ft. Each day it falls back 2 ft. So it never reaches the top.