It took 36 seconds for Wang Hao to go to Li Qing's house from the first floor to the third floor. How many seconds will it take to walk to the sixth floor where Li Qing's house lives at the same speed?
王浩去李青家，从一层走到三层用了36秒．如果用同样的速度走到李青家居住的六层，还要走多少秒．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

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

<gadget id="calculator">18 * 3</gadget>
<output>54</output>

<result>54</result>