There are 108 roosters in the chicken farm, and 40 hens are 3 times more than roosters. How many hens are there in the chicken farm?
养鸡场养了公鸡108只，养的母鸡比公鸡的3倍还多40只，养鸡场养母鸡多少只？
<gadget id="calculator">108 * 3</gadget>
<output>324</output>

<gadget id="calculator">324 + 40</gadget>
<output>364</output>

<result>364</result>