If 15 trucks are used to deliver goods, 270 tons can be transported per day. If 6 more trucks are added, how many tons can be transported per day?
用15辆卡车送货，每天可运270吨，如果增加同样的卡车6辆，每天可运货多少吨？
<gadget id="calculator">270 / 15</gadget>
<output>18</output>

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

<gadget id="calculator">18 * 6</gadget>
<output>108</output>

<gadget id="calculator">270 + 108</gadget>
<output>378</output>

<result>378</result>