The escalator moves downward and upward at a constant speed, moving up one step every two seconds. Kalia walks on the escalator and walks two steps per second. It is known that the visible part of the escalator has a total of 120 steps. Kalia walks up the escalator. How many steps did he walk from the bottom to the top? ?
自动扶梯右下向上匀速运动，每两秒向上移动1级台阶．卡利亚在扶梯时行走，每秒走两级台阶，已知自动扶梯的可见部分共120级，卡利亚沿扶梯向上走，从底部走到顶部的过程中，他共走了多少级台阶？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) + 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">120 / (5/2)</gadget>
<output>48</output>

<gadget id="calculator">2 * 48</gadget>
<output>96</output>

<result>96</result>