85% of a barrel of oil is poured out, leaving 24 kg of oil in the barrel. How many kilograms of original oil is in the barrel?
一桶油倒出85%，桶内还剩下24千克油．桶内原有油多少千克？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">24 / (3/20)</gadget>
<output>160</output>

<result>160</result>