A child runs at the same speed on a small road, and trees are planted equidistantly on the side of the road. It takes him 30 seconds to run from the first tree to the sixth tree on the ground. The child runs like this for 60 seconds. He should Run to the number of trees.
一个小朋友以相等的速度在小路上跑，路边等距离地种着树，他从第1棵树跑到地第6棵树旁共用了30秒，这个小朋友就这样跑了60秒，他应该跑到第多少棵树旁．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<gadget id="calculator">1 + 10</gadget>
<output>11</output>

<result>11</result>