1. 3 POINTS FOR EACH PROBLEM

During a summer math camp in the city of Zakopane in Poland, a trip to Mount Giewont takesplace. It takes 3 hours to get to the top of the mountain. A halfan hour stay takes place on top ofthe mountain. Afterwards, it takes two and a half hours to come down the mountain. What timein the morning at the latest does the trip need to start so thateverybody is back at the camp forlunch at 3 P.M.?