There are 120 peach trees in the orchard, three times as many pear trees as apple trees, and 21 more peach trees than pear trees. According to the conditions, ask questions and answer them.
果园里桃树有120棵，梨树棵数是苹果树的3倍，桃树比梨树多21棵．根据条件上，提出问题，并解答．
<gadget id="calculator">120 - 21</gadget>
<output>99</output>

<gadget id="calculator">99 / 3</gadget>
<output>33</output>

<result>33</result>