A cylindrical tin oil barrel is filled with oil, pour out 60% of the oil in the barrel, it is exactly 72.6 liters, it is known that the bottom area of the oil barrel is 10 square decimeters, how many decimeters is the height of the oil barrel?
一个圆柱形铁皮油桶装满了油，把桶内的油倒出60%正好是72.6升，已知油桶的底面积是10平方分米，油桶的高是多少分米？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">72.6 / (3/5) / 10</gadget>
<output>12.1</output>

<result>12.1</result>