There is a frying pan, and only two cakes can be baked at a time. If both sides are to be baked, and each side is baked for 2 minutes, how many minutes will it take to bake 3 cakes?
有一个煎锅，每次只能烙两张饼，如果两面都要烙，每面烙2分钟，烙3张饼至少需多少分钟．
<gadget id="calculator">2 + 2 + 2</gadget>
<output>6</output>

<result>6</result>