The school paints the walls, and 2/5 of a bucket of paint is poured out, which is exactly 10 kilograms. How many kilograms is this bucket of paint originally?
学校粉刷墙壁，一桶涂料倒出2/5，刚好倒出10千克．这桶涂料原有多少千克？
<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>