A 24-meter-long wooden stick, according to a section every 4 meters, 4 points for each. How long will it take to finish this stick?
一根24米长的木棒，每4米据一段，据一次要4分．据完这木棒要多长时间？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

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

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<result>20</result>