My question is: Eric spent 2 hours removing wallpaper from just 1 wall of his 4 walled dining room. He also needs to remove wallpaper from his 4 walled living room. How many hours will it take him to remove the remaining wallpaper? Your thoughts:
His dining room is 4 walls and he has already removed 1 wall of wallpaper so that leaves 4 - 1 = 3 walls in the dining room. He has 3 walls left in the dining room and 4 in his living room for a total of 3 + 4 = 7 walls. It takes 2 hours to remove wallpaper from just 1 wall and he has 7 more to go so it will take him 2 * 7 = 14 hours. The final answer: 14.