There are 800 apples and peaches in total, among which apples account for 2/5, and some apple trees are planted, and now apple trees account for 17/25 of the two trees. How many apple trees were planted?
苹果和桃共800棵，苹果占其中的(2/5)，又栽了一些苹果树，现在苹果树占两种树的(17/25)．又栽了多少棵苹果树？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">800 * (2/5)</gadget>
<output>320</output>

<gadget id="calculator">800 - 320</gadget>
<output>480</output>

<gadget id="calculator">17 / 25</gadget>
<output>17/25 = around 0.68</output>

<gadget id="calculator">1 - (17/25)</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">480 / (8/25)</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 - 800</gadget>
<output>700</output>

<result>700</result>