80% of a barrel of gasoline is poured out, which is exactly 36 kilograms. How many kilograms does this barrel of gasoline weigh?
一桶汽油倒出80%，刚好倒出36千克．这桶汽油重多少千克？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">36 / (4/5)</gadget>
<output>45</output>

<result>45</result>