The tortoise and the hare race, the whole journey is 1.04 kilometers. The rabbit runs 4 kilometers per hour, and the tortoise climbs 0.6 kilometers per hour. The tortoise kept crawling, but the rabbit ran and played. The rabbit first ran for 1 minute and then played for 15 minutes, then ran for 2 minutes and then played for 15 minutes, then ran for 3 minutes and then played for 15 minutes... Excuse me: what is the first time to reach the finish line? How many minutes is the fastest time to reach the end?
龟兔赛跑，全程1.04千米．兔子每小时跑4千米，乌龟每小时爬0.6千米．乌龟不停地爬，但兔子却边跑边玩，兔子先跑了1分钟然后玩15分钟，又跑2分钟然后玩15分钟，再跑3分钟然后玩15分钟…请问：先到达终点的比后到达终点的快多少分钟？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1.04 / (1/15)</gadget>
<output>15.6</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">15.6 + 60</gadget>
<output>75.6</output>

<gadget id="calculator">103.8 - 75.6</gadget>
<output>28.2</output>

<result>28.2</result>