Xiaohui wants to present a bouquet of flowers for her mother's birthday. If he bought 4 carnations with the money he brought, there would be 3.60 yuan left, and if he bought 8 of the same flowers, the difference would be 4.80 yuan. How much did Xiaohui bring?
小慧想为妈妈的生日献上一束鲜花．他带的钱如果买4朵康乃馨还剩3.60元，如果买同样的花8朵，则差4.80元，问小慧带了多少钱？
<gadget id="calculator">3.6 + 4.8</gadget>
<output>8.4</output>

<gadget id="calculator">8 - 4</gadget>
<output>4</output>

<gadget id="calculator">8.4 / 4</gadget>
<output>2.1</output>

<gadget id="calculator">2.1 * 4</gadget>
<output>8.4</output>

<gadget id="calculator">8.4 + 3.6</gadget>
<output>12</output>

<result>12</result>