According to statistics from relevant departments, a city with a population of 3 million consumes about 1.2 million pairs of disposable chopsticks per month, which is equivalent to consuming 42 adult trees. According to the urban population of your city, it is estimated that the city consumes How many adult trees are equivalent to the consumption of disposable chopsticks?
据相关部门的统计数据显示，一个300万人口的城市，每月大约消费120万双一次性筷子，相当于消耗42棵成年树木，根据你所在市的市内人口，估计本市每月消费掉的一次性筷子相当于消耗多少棵成年树木？
<gadget id="calculator">40 / 120</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 42</gadget>
<output>14</output>

<result>14</result>