1. "Your wife, Karen, and the three kids, eh?" said Joe, handing back the photo. "You're a lucky man." Keith smiled. "I suppose I am, but it's funny about their ages. The difference between the cubes of the boys' ages is the square of Karen's age, while the difference between their squares is the cube of little Anne's age." How old were the boys?

Boys were 6 and 9

Boys 6 and 10 years old

Boys were 7 and 8