A school sent 360 students to participate in the summer camp, and found that boys accounted for 40%. In order to make boys account for 50%, another group of boys was sent. How many boys were sent?
某校选派360名学生参加夏令营，结果发现男生占40%，为了使男生占50%，又增派了一批男生，被增派的男生有多少名．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">360 * (3/5)</gadget>
<output>216</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">216 / (1/2)</gadget>
<output>432</output>

<gadget id="calculator">432 * (1/2)</gadget>
<output>216</output>

<gadget id="calculator">360 * (2/5)</gadget>
<output>144</output>

<gadget id="calculator">216 - 144</gadget>
<output>72</output>

<result>72</result>