A barrel of gasoline is used (2/5), and 10 kilograms are used. How many kilograms is this barrel of gasoline?
一桶汽油用了(2/5)，用了10千克，这桶汽油有多少千克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">10 / (2/5)</gadget>
<output>25</output>

<result>25</result>