There are 30 apple trees in the garden, and there are 25 fewer pear trees than three times the number of apple trees. How many pear trees are there?
园里有30棵苹果树，梨树比苹果树的3倍少25棵．梨树有多少棵？
<gadget id="calculator">30 * 3</gadget>
<output>90</output>

<gadget id="calculator">90 - 25</gadget>
<output>65</output>

<result>65</result>