Uncle Fei wanted to make a wooden bench. He first sawed a piece of wood into 4 sections, which took 12 minutes. How many minutes would it take to cut another piece of wood into 8 sections? (Assume that Uncle Fei spends the same amount of time each time)
费叔叔想做一张木凳，他先把一根木头锯成4段，用了12分钟，如果把另一根木头据成8段，需要几分钟？(假设费叔叔每据断一次所花的时间相同)
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

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

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">4 * 7</gadget>
<output>28</output>

<result>28</result>