There are twenty-two people in a waiting room. If three more people arrive, the number of people in the waiting room becomes five times the number of people inside the interview room. How many people are in the interview room? Give the rationale and then the answer.
Let's think step by step. There are twenty - two people in a waiting room, and if three more people arrive, the number increases to 22 + 3 = 25. If three more people arrive, the number of people in the waiting room becomes five times the number of people that are inside the interview room, meaning there are 25 / 5 = 5 people inside the interview room.. The answer is: 5.

Alan has 8 pine trees in his backyard and each tree drops 200 pine cones. If 30% of the pine cones fall on Alan's roof, and each pine cone weighs 4 ounces, how many ounces of pine cones does Alan have on his roof? Give the rationale and then the answer.
Let's think step by step. First find the total number of pine cones: 8 trees * 200 pine cones / tree = 1600 pine cones. Then multiply that number by 30% to find how many fall on Alan's roof: 1600 pine cones * 30% = 480 pine cones. Then multiply that number by the weight of each pine cone to find the total weight of the pine cones: 480 pine cones * 4 ounces / pine cone = 1920 ounces.. The answer is: 1920.

James has to refuel his plane. It used to cost $200 to refill the tank. He got an extra tank to double fuel capacity. Fuel prices also went up by 20%. How much does he pay now for fuel? Give the rationale and then the answer.
Let's think step by step. The cost to fill a tank went up 200 * .2 = $40. So it cost 200 + 40 = $240 to fill the tank. That means he now pays 240 * 2 = $480.. The answer is: 480.