A person goes up the mountain for fun, it takes 120 minutes to go up the mountain, and the speed increases (1/4) along the original road to go down the mountain, how much will it take to go down the mountain?
某人上山游玩，上山用了120分钟，沿原路下山，速度提高了(1/4)，下山将用多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / (5/4)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 * (4/5)</gadget>
<output>96</output>

<result>96</result>