It takes 12 minutes for a uniform piece of wood to be cut into 4 sections, how many minutes will it take if it is sawn into 6 sections?
一根均匀的木料据成4段要12分钟，如锯成6段要多少分钟．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<result>20</result>