Xiaohong’s sister brought some money to buy exercise books. If she bought one for 0.3 yuan, she could buy 24 books. If she bought another exercise book, each book would cost 0.1 yuan more. How much can she buy with the money she brought? Book?
小红的姐姐带了一些钱去买练习本，如果买0.3元一本的可以买24本，如果买另一种练习本，每本要多花0.1元，那她所带的钱可以买多少本？
<gadget id="calculator">0.3 + 0.1</gadget>
<output>0.4</output>

<gadget id="calculator">0.3 / 0.4</gadget>
<output>0.75</output>

<gadget id="calculator">24 * 0.75</gadget>
<output>18</output>

<result>18</result>