36.--BUYING APPLES.

As the purchase of apples in small quantities has always presented

considerable difficulties, I think it well to offer a few remarks on

this subject. We all know the story of the smart boy who, on being told

by the old woman that she was selling her apples at four for threepence,

said: "Let me see! Four for threepence; that's three for twopence, two

for a penny, one for nothing--I'll take _one_!"

There are similar cases of perplexity. For example, a boy once picked up

a penny apple from a stall, but when he learnt that the woman's pears

were the same price he exchanged it, and was about to walk off. "Stop!"

said the woman. "You haven't paid me for the pear!" "No," said the boy,

"of course not. I gave you the apple for it." "But you didn't pay for

the apple!" "Bless the woman! You don't expect me to pay for the apple

and the pear too!" And before the poor creature could get out of the

tangle the boy had disappeared.

Then, again, we have the case of the man who gave a boy sixpence and

promised to repeat the gift as soon as the youngster had made it into

ninepence. Five minutes later the boy returned. "I have made it into

ninepence," he said, at the same time handing his benefactor threepence.

"How do you make that out?" he was asked. "I bought threepennyworth of

apples." "But that does not make it into ninepence!" "I should rather

think it did," was the boy's reply. "The apple woman has threepence,

hasn't she? Very well, I have threepennyworth of apples, and I have just

given you the other threepence. What's that but ninepence?"

I cite these cases just to show that the small boy really stands in need

of a little instruction in the art of buying apples. So I will give a

simple poser dealing with this branch of commerce.

An old woman had apples of three sizes for sale--one a penny, two a

penny, and three a penny. Of course two of the second size and three of

the third size were respectively equal to one apple of the largest size.

Now, a gentleman who had an equal number of boys and girls gave his

children sevenpence to be spent amongst them all on these apples. The

puzzle is to give each child an equal distribution of apples. How was

the sevenpence spent, and how many children were there?

Amusements in Mathematics · 第 45 / 970 题