An office is located on the eighth floor. One day, the elevator stopped. It took Xiaohua 48 seconds to walk from the first floor to the fourth floor. How many seconds will it take to walk to the eighth floor at the same speed?
某办事处设在八楼，一天电梯停开，小华从1楼走到4楼用了48秒，以同样的速度走到八楼，还需要多少秒．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">48 / 3</gadget>
<output>16</output>

<gadget id="calculator">8 - 4</gadget>
<output>4</output>

<gadget id="calculator">16 * 4</gadget>
<output>64</output>

<result>64</result>