Two trains depart from Station A and Station B at the same time, run towards each other, and meet after 120 minutes. After both trains increase their speed by 20%, they depart from both stations at the same time and meet again after how many minutes.
两列火车同时从甲、乙两站出发，相向而行，120分钟后相遇，两列火车均提速20%后，再从两站同时相向出发，经过多少分钟相遇．
<gadget id="calculator">1 / 120</gadget>
<output>1/120 = around 0.008333</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(1/120) * (6/5)</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">1 / (1/100)</gadget>
<output>100</output>

<result>100</result>