Dig a cuboid bunker with a length of 6 meters and a width of 5 meters. If the volume of the bunker reaches 90 cubic meters, how deep should it be dug?
挖一个长6米、宽5米的长方体沙坑，要是沙坑的容积达到90立方米，应该挖多少米深．
<gadget id="calculator">90 / 6 / 5</gadget>
<output>3</output>

<result>3</result>