The sum of A and B is 240, the sum of 20% of A and 12% of B is 38, then what is B
甲、乙的和是240，甲的20%与乙的12%的和是38，则乙是多少
<gadget id="calculator">38 * 5</gadget>
<output>190</output>

<gadget id="calculator">240 - 190</gadget>
<output>50</output>

<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">(3/25) * 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">50 / (2/5)</gadget>
<output>125</output>

<result>125</result>