The school went to a mountain forest to plant trees on the tree festival, and planted four kinds of trees: pine, poplar, willow and fir. Among them, 300 pine trees and poplars were planted, and 450 willows, poplars, and fir trees were planted. The number of poplar trees was exactly the total (8/17) of the total number of trees planted. How many pine trees were planted in total?
学校值树节到一山林植树，一共植了松树、杨树、柳树和杉树四种树．其中松树和杨树共植了300棵，柳树、杨树和杉树共450棵，杨树的棵树恰好是所植总数的(8/17)，一共植了多少棵松树？
<gadget id="calculator">8 / 17</gadget>
<output>8/17 = around 0.470588</output>

<gadget id="calculator">(8/17) * 510</gadget>
<output>240</output>

<gadget id="calculator">300 - 240</gadget>
<output>60</output>

<result>60</result>