There are 48 apple trees in the orchard, four times the number of peach trees, and 12 fewer pear trees than the total number of apple and peach trees. How many pear trees are there in the orchard?
果园有苹果树48棵，桃树的棵数是苹果树的4倍，梨树的棵数比苹果树和桃树的总数少12棵，果园有梨树多少棵？
<gadget id="calculator">48 * 4</gadget>
<output>192</output>

<gadget id="calculator">192 + 48</gadget>
<output>240</output>

<gadget id="calculator">240 - 12</gadget>
<output>228</output>

<result>228</result>