The students in the feeding group of Wutong School mowed grass to do the experiment of raising rabbits. There were 14 people in the first group, with an average of 11kg of grass per person, and 15 people in the second group, with a total of 220kg of grass. How many kilograms of grass did the two groups mow in total?
五通学校饲养组同学割草做养兔实验，第1组14人，平均每人割草11kg，第2组15人，一共割草220kg．两组一共割草多少千克？
<gadget id="calculator">11 * 14</gadget>
<output>154</output>

<gadget id="calculator">154 + 220</gadget>
<output>374</output>

<result>374</result>