There is some oil in a barrel, and the oil and the barrel weigh 100 kilograms in total, and the oil (1/3) that is poured out for the first time is 4 kilograms more; The total weight of the barrel is 54 kilograms. How many kilograms of oil are there in the original barrel?
一个桶装了一些油，油和桶共重100千克，第一次倒出油的(1/3)多4千克；第二次倒出这桶油的25%，这时剩下的油和桶共重54千克，原来桶里装的油有多少千克？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 100</gadget>
<output>100/3 = around 33.333333</output>

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

<gadget id="calculator">(1/4) * 100</gadget>
<output>25</output>

<gadget id="calculator">54 - 100</gadget>
<output>-46</output>

<gadget id="calculator">(100/3) + 4 + 25 + (-46)</gadget>
<output>49/3 = around 16.333333</output>

<gadget id="calculator">(1/3) + (1/4)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(49/3) / (7/12)</gadget>
<output>28</output>

<gadget id="calculator">100 - 28</gadget>
<output>72</output>

<result>72</result>