855 - Math - Problem Solving

Question: The classic problem of a monkey and the greased flag pole . The height of a certain flag pole is 30 feet. Grease is applied to the pole. A monkey attempts to climb the pole. It climbs 3 feet every second but slips down 2 ft in the next second. When will the monkey reach the top of the flag pole?

1. 56 secs
2. 27 secs
3. 60 secs
4. 55 secs