There are 240 apple trees in the orchard, 45 fewer pear trees than apple trees, and three times as many pear trees as peach trees. How many pear trees are there in the orchard?
果园里有苹果树240棵，梨树比苹果树少45棵，梨树是桃树的3倍，果园里梨树有多少棵？
<gadget id="calculator">240 - 45</gadget>
<output>195</output>

<result>195</result>