The distance between A and B is 1800 meters. A, B, and C take turns to carry a bucket of water from A to B by two people. What is the average number of meters each person carries?
A、B两地相距1800米，甲、乙、丙三人轮流由两个人抬一桶水由A至B，平均每人抬多少米．
<gadget id="calculator">1_800 * 2</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 / 3</gadget>
<output>1_200</output>

<result>1_200</result>