Doubt

A lizard is at the bottom of a pole that is 100 meters tall. In the first 2 minutes the lizard climbs up 5 meters. It rests the 3rd minute and slips down 2 meters. It again climbs 5 meters in the next 2 mins and rests for the 3rd minute, during which it slips down 2 meters. This process continuous till the time the lizard reaches the top of the pole. Find the total time taken by the lizard to reach the top.