English joke: A math problem in arithmetic.

Bill is a good student and a clever boy. He likes studying arithmetic.

He can easily do all the arithmetic problems in the book.

One day, on his way to school, Bill passed by a fruit shop. There is a sign on the window that says

Apples-six for five cents. Bill had an idea. He went into the shop.

How much are the apples? He asked the shop.

Six for five cents.

But I don't want six apples.

How many apples do you want?

It's not a question of how many apples I want. This is an arithmetic problem.

What does a problem in arithmetic mean? The man asked.

good

If six apples are worth five cents

Then five apples are worth four cents.

Four apples are worth three cents.

Three apples are worth two cents.

O an apple is worth a penny, but an apple is worthless. I just want an apple.

If an apple is worthless, then I don't have to pay you.

Bill chose a good apple.

Start eating it

Walked out of the shop happily. The man looked at the little boy in surprise and couldn't say a word. Bill is a good student and a clever boy. He likes to learn math, and he can solve the math problems in the textbook easily.

One day, on his way to school, Bill passed by a fruit shop. There is a sign on the window of the shop that says: apples-six for five cents. Bill had a brainwave and walked into the shop.

How much are the apples?

Six for five cents.

But I don't want six.

How much do you want?

It's not a question of how much I want. This is a mathematical problem.

Math problems? What do you mean by that?

You see, if six apples are five points, then five apples are four points, four apples are three points, three apples are two points, two apples are one point, and one apple is free. I just want an apple. If an apple costs nothing, then I don't need to give you money.

Bill picked a good apple, began to eat it, and then walked out of the shop happily. The salesman looked at the boy in surprise and couldn't say a word.