At noon on Sunday, Beibei bought drinks for 24 students, 5 bottles in a bundle, 7 yuan per bundle, and one bottle for each bundle bought. How much does Beibei cost at least?
周日中午，贝贝给24名同学买饮料，5瓶一捆，每捆7元，每买一捆送一瓶．贝贝至少需要花多少钱？
<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<gadget id="calculator">4 * 7</gadget>
<output>28</output>

<result>28</result>