There are 305 peach trees in the orchard, and there are 15 fewer apple trees than twice as many peach trees. How many apple trees are there?
果园里有桃树305棵，苹果树比桃树的2倍少15棵．苹果树有多少棵？
<gadget id="calculator">305 * 2</gadget>
<output>610</output>

<gadget id="calculator">610 - 15</gadget>
<output>595</output>

<result>595</result>