There are 40 poplar trees in the nursery, 5 times as many willows as poplars, and 3 times as many peach trees as willows. How many peach trees are there?
苗圃里有杨树40棵，柳树的棵数是杨树的5倍，桃树的棵数是柳树的3倍．桃树有多少棵？
<gadget id="calculator">40 * 5 * 3</gadget>
<output>600</output>

<result>600</result>