A certain factory has 340 workers, of which 130 are male workers. How many male workers were later recruited, and at this time male workers accounted for exactly 65% of the total.
某厂有工人340人，其中男工人130人，后来又招进多少男工，这时男工正好占总数的65%．
<gadget id="calculator">340 - 130</gadget>
<output>210</output>

<gadget id="calculator">65 / 100</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">1 - (13/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">210 / (7/20)</gadget>
<output>600</output>

<gadget id="calculator">600 - 340</gadget>
<output>260</output>

<result>260</result>