If it takes 10 minutes to saw a log into 5 pieces, how many minutes will it take to saw it into 6 pieces?
把一根圆木锯成5段要10分钟，锯成6段要多少分钟．
<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>