At that time in a bakery there is a mother with a son. The owner of the bakery seems already quite familiar with this customer. When the mother is busy talking about his order to the owner of the store, the boy kept staring at a big carrot cake with a mature crust and a layer of vanilla in it. Apparently the store owner memperhatika the child. Then he filed a tempting offer.
"I will give the tart for you if you can solve this little puzzle," said the shopkeeper. "How can so I can cut this round tart into 16 pieces are exactly the same only with four slices straight?"
The child immediately said, "How many ways Mr. want?"
"Just one way. But remember, all the slices must pass vanilinya layer. "
"Oh ... yes, you were right. Indeed, there's only one kind of way. With two slices perpendicular, Mr. will acquire four pieces. Then lined up all four pieces before and iris once again be straight in the middle row. Well, Mr.'ve got eight pieces. Furthermore, these eight pieces lined up again. The fourth straight slices will produce 16 pieces of the same. How ... right? "
"Exactly, Jake. Here, tart it now belongs to you all. "
The mother insisted to pay the tart, but the shop owner refused.
The boy and his mother thanked the owner of the shop and hurried home (of course, along with the tart).
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Puzzle adventure Dr. Ecco, written by Dennis Shasha, published in Jakarta by grants in 1995.
