Put 30 liters of salt water into a container with a bottom area of 10 square decimeters, what is the depth of the salt water in decimeters?
把30升盐水装入底面积是10平方分米的容器中，盐水深多少分米．
<gadget id="calculator">30 / 10</gadget>
<output>3</output>

<result>3</result>