I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Wednesday, August 16, 2006
All in the family
I have three sisters, and all of us are mothers. My sister Kay has two nephews and three nieces. My sister Jane has one nephew and three nieces. My sister Belle has one nephew and five nieces. I have one daughter. How many nephews and nieces do I have?