A train has 10 sections, each section is 5 meters long, and the distance between each section is 1 meter. How many minutes does it take for the train to pass through a 101-meter-long tunnel at a speed of 20 meters per minute?
一列火车共10节，每节长5米，每两节之间相距1米，这列火车以每分钟20米的速度通过101米长的隧道，需要多少分钟？
<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 1</gadget>
<output>9</output>

<gadget id="calculator">50 + 9</gadget>
<output>59</output>

<gadget id="calculator">59 + 101</gadget>
<output>160</output>

<gadget id="calculator">160 / 20</gadget>
<output>8</output>

<result>8</result>