The fruit shop shipped 80 boxes of grapes, each weighing 20 kilograms, and the number of apples shipped was three times that of grapes. How many kilograms of apples were shipped?
水果店运来80箱葡萄，每箱20千克，运来的苹果是葡萄的3倍，运来苹果多少千克？
<gadget id="calculator">20 * 80 * 3</gadget>
<output>4_800</output>

<result>4_800</result>