The total number of trees on a school campus is five times that of pine trees, and the number of willows is twice that of pine trees. Now the school has planted another 50 willows, the total number of trees is 11 times that of poplars, and the number of willows is 5 times that of poplars. How many trees are there in the school now?
某学校校园中的树木的总数是松树的5倍，柳树数量是松树的2倍．现学校又种了50棵柳树，则树木的总数是杨树的11倍，柳树的数量是杨树的5倍．现在学校共有树木多少棵？
<gadget id="calculator">50 / 11</gadget>
<output>50/11 = around 4.545455</output>

<gadget id="calculator">(50/11) * 5</gadget>
<output>250/11 = around 22.727273</output>

<gadget id="calculator">50 - (250/11)</gadget>
<output>300/11 = around 27.272727</output>

<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">(5/11) * 5</gadget>
<output>25/11 = around 2.272727</output>

<gadget id="calculator">(25/11) - 2</gadget>
<output>3/11 = around 0.272727</output>

<gadget id="calculator">(300/11) / (3/11)</gadget>
<output>100</output>

<gadget id="calculator">100 * 5</gadget>
<output>500</output>

<gadget id="calculator">500 + 50</gadget>
<output>550</output>

<result>550</result>