Take out two bags of fertilizer (1/3) from bag A and 75% from bag B. At this time, the weight of bag A is exactly twice that of bag B. A bag of original chemical fertilizer 60kg. How many kg is the original chemical fertilizer in bag B?
两袋化肥，从甲袋取出(1/3)，从乙袋取出75%，这时甲袋重量正好是乙袋的2倍．甲袋原有化肥60kg．乙袋原有化肥多少kg？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/3) / 2 / (1/4)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">60 * (4/3)</gadget>
<output>80</output>

<result>80</result>