On Sunday, my mother baked egg pancakes for Xiao Ming. If you can put at most two pancakes in the pot at a time, one pancake needs to be baked on both sides, and it takes 2 minutes to bake one side. How long does it take at least to bake five pancakes?
周日妈妈给小明烙鸡蛋饼，如果锅里每次最多可以放两张饼，一张饼需要烙两面，每烙一面需要2分钟，要烙五张饼最少需要用多少分钟．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<result>10</result>