There are 120 volleyballs, three times the number of footballs. How many volleyballs and footballs are there? What is the correct column formula.
排球有120个，是足球个数的3倍，排球和足球共有多少个？正确的列式是多少．
<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">40 + 120</gadget>
<output>160</output>

<result>160</result>