A pot can fry 2 fish at the same time, and it takes 5 minutes on each side. How many minutes does it take to cook three fish at least.
一个锅一次能同时煎2条鱼，两面各需要5分钟，煎熟三条鱼最少需要多少分钟．
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<result>15</result>