There are two people who pay the same amount of money to buy the same number of books, and one of them gets 6 more books than the other, and pays the other 3 yuan for this. So how much is each book.
有两个人出相等的钱买若干同样的本子，其中一个人比另一个人多得了6本，并为此付给另一个人3元钱．那么每本本子多少元．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<result>1</result>