A and B start from point A, and C starts from point B at the same time and walks towards A and B. It is known that the speeds of A, B, and C are 60 meters, 80 meters, and 100 meters per minute, respectively. When B and C meet, A is 200 meters behind B, what is the distance between A and B?
甲、乙二人从A地出发，丙同时从B地出发与甲、乙两人相向而行．已知甲、乙、丙三人的速度分别是每分钟60米、80米、100米．当乙和丙相遇时，甲落后于乙200米，求A、B两地相距多少米？
<gadget id="calculator">80 + 100</gadget>
<output>180</output>

<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">200 / 20</gadget>
<output>10</output>

<gadget id="calculator">180 * 10</gadget>
<output>1_800</output>

<result>1_800</result>