After the opening of the Shanghai-Nanjing high-speed railway, a high-speed train departs from Nanjing to Shanghai at 8:00 in the morning, stopping at 5 stations on the way, and stopping for 2 minutes at each station. At 8:25 a high-speed train also departed from Nanjing to Shanghai without stopping on the way. The speed of the high-speed train was 1/5 faster than that of the high-speed train. As a result, the two trains arrived in Shanghai at the same time. How many minutes does the high-speed train take from Nanjing to Shanghai?
沪宁高铁通车后，一列动车早晨8时从南京开往上海，途中停靠5个车站，每站各停车2分钟．8时25分一列高速列车也从南京开往上海，途中不停车，高速列车的速度比动车快(1/5)，结果两车同时到达上海．高速列车从南京开到上海用时多少分钟．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">25 - 10</gadget>
<output>15</output>

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

<gadget id="calculator">15 / (1/5)</gadget>
<output>75</output>

<result>75</result>