It took Xiaojun 28 seconds to go from the sixth floor to the eighth floor. According to this calculation, how many seconds will it take him to go from the third floor to the sixth floor.
小军从六层楼上到八层楼用了28秒，照这样计算，他从三层楼上到六层楼要用多少秒．
<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">28 / 2</gadget>
<output>14</output>

<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<gadget id="calculator">14 * 3</gadget>
<output>42</output>

<result>42</result>