It took 12 minutes to saw a piece of wood into 3 sections, and how many minutes would it take to saw it into 6 sections at the same speed?
把一根木头锯成3段，用了12分钟，以同样的速度锯成6段，需要多少分钟？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

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

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<result>30</result>