A bucket of water uses up (3/5), exactly 15 kilograms. How many kilograms does this bucket of water weigh?
一桶水用去它的(3/5)，正好用去15千克．这桶水重多少千克？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">15 / (3/5)</gadget>
<output>25</output>

<result>25</result>