6 trucks transport a total of 150 tons of goods 5 times. According to this calculation, how many times will 6 trucks transport 450 tons of goods in total?
6辆卡车5次一共运货物150吨，照这样计算，6辆卡车运450吨货物，一共要运多少次？
<gadget id="calculator">150 / 5</gadget>
<output>30</output>

<gadget id="calculator">450 / 30</gadget>
<output>15</output>

<result>15</result>