Xiaomin bought 4 notebooks for 24 yuan, how much would it cost if he bought 12 of the same notebooks?
小敏买4个笔记本用了24元，如果买12个同样的笔记本，需要多少钱？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 12</gadget>
<output>72</output>

<result>72</result>