3 vehicles transport 90 tons of goods in 6 times. According to this calculation, how many times do 3 vehicles need to transport 270 tons of goods?
3辆汽车6次共运货90吨，照这样计算，3辆汽车运270吨货物，需要运多少次？
<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<gadget id="calculator">270 / 15</gadget>
<output>18</output>

<result>18</result>