It takes 15 minutes to saw a piece of wood into 6 sections. If each section takes the same amount of time, how many minutes will it take to saw 10 sections?
一根木料锯成6段要15分钟，如果每锯一段所用时间相同，那么锯成10段需要花多少分钟．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">15 / 5</gadget>
<output>3</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">3 * 9</gadget>
<output>27</output>

<result>27</result>