A hospital builds a pool that can store 720 cubic meters of water. The pool is 20 meters long and 12 meters wide. How deep is the pool?
某医院建一个能蓄水720立方米的水池，水池长20米，宽12米，水池的深是多少米？
<gadget id="calculator">20 * 12</gadget>
<output>240</output>

<gadget id="calculator">720 / 240</gadget>
<output>3</output>

<result>3</result>