狡猾的香肠商人

A BARGAIN PRICE FOR SAUSAGES?

A butcher suspends a long string of chiplolata sausage just above the pan of the shop scale. He offers to charge the customer for only one-half of the maximum reading of the scale after releasing the upper end of the string.

Question: Is this a bargain? Why?

答案：

No. 最大重量读数在最后一小段香肠掉到秤盘时出现, 此时读数为3Mg.