It takes 30 seconds for Xiao Ming to go from the first floor to the fourth floor. According to this calculation, how many seconds does it take for Xiao Ming to walk from the first floor to the sixth floor.
小明从一楼到四楼要30秒钟，照这样计算，小明从一楼走到六楼要多少秒．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

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

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<result>50</result>