Xiao Wang has already made 240 machine parts, which is 20% less than planned. How many more should Xiao Wang make in order to exceed the quota by 25%.
小王做机器零件，已经做了240个，比计划还少20%，为了超额25%，小王还应再做多少个．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">240 / (4/5)</gadget>
<output>300</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">300 * (5/4)</gadget>
<output>375</output>

<gadget id="calculator">375 - 240</gadget>
<output>135</output>

<result>135</result>