A ship has pulled into a dock and released a rope ladder off the side to allow the crew to get off. There are 10 steps on the ladder which are 1m apart. The boat is there for 3 hours and the tide comes in at 1m an hour. How many steps are above the surface?
A ship has pulled into a dock and released a rope ladder off the side to allow the crew to get off. There are 10 steps on the ladder which are 1m apart. The boat is there for 3 hours and the tide comes in at 1m an hour. How many steps are above the surface?