If it takes 10 minutes to saw a piece of wood into 5 sections, how many minutes will it take to saw this piece of wood into 6 sections at this speed?
把一根木头锯成5段要10分钟，照这样的速度，把这根木头锯成6段，要用多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">10 / 4</gadget>
<output>5/2 = around 2.5</output>

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

<gadget id="calculator">(5/2) * 5</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>