In an orchard, the ratio of apple trees, pear trees, and peach trees is 3:4:5, and there are 60 pear trees. How many fruit trees are there in the orchard?
一个果园里，苹果树、梨树、桃树的棵树的比为3：4：5，其中梨树有60棵，果园里一共有多少棵果树？
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">3 + 4 + 5</gadget>
<output>12</output>

<gadget id="calculator">15 * 12</gadget>
<output>180</output>

<result>180</result>