There are 240 peach trees in the orchard, three times the number of pear trees, and 15 fewer apple trees than twice the number of pear trees. How many apple trees are there?
果园里有桃树240棵，是梨树的3倍，苹果树比梨树的2倍少15棵，苹果树有多少棵？
<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">160 - 15</gadget>
<output>145</output>

<result>145</result>