The number of apple trees in the orchard is three times that of peach trees, and the number of peach trees is five times that of pear trees. There are 165 apple trees, how many pear trees are there?
果园里苹果树的棵树是桃树棵数的3倍，桃树的棵树是梨树的5倍．苹果树有165棵，梨树有多少棵？
<gadget id="calculator">165 / 3</gadget>
<output>55</output>

<gadget id="calculator">55 * 5</gadget>
<output>275</output>

<result>275</result>