If the pan can bake 4 cakes at a time. It takes 4 minutes for each cake to be cooked (two minutes for each side), how many minutes is the fastest time to bake 6 cakes.
若平底锅一次可以烙4个饼．每个饼烙熟要4分钟(两面各两分钟)，烙6个饼最快要多少分钟．
<gadget id="calculator">4 + 4 + 4</gadget>
<output>12</output>

<result>12</result>