141.--SATURDAY MARKETING.

Here is an amusing little case of marketing which, although it deals

with a good many items of money, leads up to a question of a totally

different character. Four married couples went into their village on a

recent Saturday night to do a little marketing. They had to be very

economical, for among them they only possessed forty shilling coins. The

fact is, Ann spent 1s., Mary spent 2s., Jane spent 3s., and Kate spent

4s. The men were rather more extravagant than their wives, for Ned Smith

spent as much as his wife, Tom Brown twice as much as his wife, Bill

Jones three times as much as his wife, and Jack Robinson four times as

much as his wife. On the way home somebody suggested that they should

divide what coin they had left equally among them. This was done, and

the puzzling question is simply this: What was the surname of each

woman? Can you pair off the four couples?

Amusements in Mathematics · 第 163 / 970 题