The bottom area of a swimming pool is 1500m**2, and the three water inlets enter water at the same time, which can inject 50m**3 per minute, and the pool can be filled in 45 minutes. How deep is the swimming pool?
一个游泳池的底面积是1500m**2，三个进水口同时进水，每分钟能注进50m**3，45分钟可把池子注满．游泳池深多少呢？
<gadget id="calculator">45 / 1_500</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">50 * (3/100)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>