It takes 30 minutes to saw a piece of wood with uniform thickness and length of 5 meters into 6 sections. Now how many minutes will it take to saw it into 9 sections?
把一根粗细均匀，长5米的木头锯成6段需要30分钟，现在要把它锯成9段，共需多少分钟．
<gadget id="calculator">9 - 1</gadget>
<output>8</output>

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

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

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>