A square melon field has a side length of 500 meters. If the average yield of watermelons per hectare is 50,000 kilograms, how many kilograms of watermelons can be produced in this field?
一个正方形的瓜地，边长是500米，如果平均每公顷产西瓜5万千克，这块地共产西瓜多少万千克？
<gadget id="calculator">500 / 10_000</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">500 * (1/20) * 5</gadget>
<output>125</output>

<result>125</result>