A carpenter saws a piece of wood 10 meters long, and it takes 2 minutes to saw each section. How many minutes will it take to saw this piece of wood into 5 equal pieces?
木匠锯一根10米长的木头，每锯一段要用2分钟．如果把这根木头锯成相等的5段，一共要用多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<result>8</result>