There are 8 barrels of oil of equal weight, and 25.6 kilograms are taken out from each barrel. The remaining oil is equivalent to the original 3 barrels of oil. What is the original weight of each barrel of oil?
有8桶相等的重量的油，每桶取出25.6千克，剩下的油相当于原来3桶油，原来每桶油重多少千克．
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">25.6 * (8/5)</gadget>
<output>40.96</output>

<result>40.96</result>