There are 210 geese, 3 times as many chickens as geese, and 2 times as many ducks as chickens, how many ducks are there?
鹅有210只，鸡的只数是鹅的3倍，鸭的只数是鸡的2倍，鸭有多少只？
<gadget id="calculator">210 * 3 * 2</gadget>
<output>1_260</output>

<result>1_260</result>