A bottle of 1.25 kg of pure water can fill 5 cups, how many kilograms are contained in each cup on average?
一瓶1.25千克的纯净水可以倒满5个杯子，平均每杯装多少千克？
<gadget id="calculator">1.25 / 5</gadget>
<output>0.25</output>

<result>0.25</result>