There are 65 pear trees in the orchard, 25 fewer than three times the number of apple trees. How many apple trees are there? (solution by equation)
果园里有65棵梨树，比苹果树的3倍少25棵，苹果树有多少棵？(用方程解)
<gadget id="calculator">25 + 65</gadget>
<output>90</output>

<gadget id="calculator">90 / 3</gadget>
<output>30</output>

<result>30</result>