Pour 120 liters of paint into 2 large barrels and 6 small barrels. The capacity of the large barrels is three times that of the small barrels. How many liters of paint can be poured into each large barrel?
把120升油漆正好倒满2个大桶和6个小桶中，大桶的容量是小桶的3倍，每个大桶可倒入多少升油漆？
<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">2 + 2</gadget>
<output>4</output>

<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<result>30</result>