There are 480 peach and pear trees in the orchard, and the number of pear trees is three times that of peach trees. How many peach trees are there in the orchard? (Solution of column equation)
果园里有桃树和梨树共480棵，梨树的棵数是桃树的3倍，果园里有桃树多少棵？(列方程解)
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">480 / 4</gadget>
<output>120</output>

<result>120</result>