Uncle Li needs to spend 24 yuan to buy 4 cups. How much will it cost if he buys 7 of the same cups?
李叔叔买4个杯子需要花24元，如果买7个同样的杯子，需要花多少钱？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<result>42</result>