Required Mathematical Intelligence

Chapter 101 The Price of Eggs

"When I bought eggs, I paid the grocer 12 cents," said one chef, "but because they were too small, I asked him to add two eggs for free. That way, every dozen (2 cents) only) eggs, the price is one cent lower than the original asking price." How many eggs did the chef buy?

[Answer: The chef bought 16 eggs at first, but the boss gave him 2 more eggs, so the chef bought 18 eggs in total. ]
(End of this chapter)