The tortoise and the hare run a 6,000-meter race. The tortoise climbs 30 meters per minute, and the rabbit runs 200 meters per minute. The rabbit stops and sleeps for an hour every 5 minutes. Ask how many minutes the tortoise reaches the finish line earlier than the rabbit.
龟兔赛跑，全程6000米，龟每分钟爬30米，兔每分钟跑200米，兔子每跑5分钟就停下睡1小时，问龟比兔早多少分钟到达终点．
<gadget id="calculator">6_000 / 30</gadget>
<output>200</output>

<gadget id="calculator">6_000 / 200</gadget>
<output>30</output>

<gadget id="calculator">30 - 200</gadget>
<output>-170</output>

<gadget id="calculator">300 + (-170)</gadget>
<output>130</output>

<result>130</result>