To resettle 5 million victims, if a tent covers an area of 50 square meters and can accommodate 20 beds, how many tents are needed in total?
安置500万灾民，如果一个帐篷占地50平方米，可以安20张床，一共需要多少顶帐篷．
<gadget id="calculator">500 * 10_000</gadget>
<output>5_000_000</output>

<gadget id="calculator">5_000_000 / 20</gadget>
<output>250_000</output>

<result>250_000</result>