It takes 30 minutes to cut a steel bar into 6 sections, how many minutes will it take to cut it into 8 sections?
一根钢筋截6段需30分钟，截成8段要多少分钟．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

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

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

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<result>42</result>