A, B, and C walk 60 meters, 50 meters, and 40 meters per minute respectively. A starts from point B, and B and C start from point A at the same time. ． What is the distance between A and B in meters?
甲、乙、丙三人每分钟分别行60米、50米、和40米，甲从B地，乙和丙从A地同时出发相向而行，途中甲遇到乙后15分钟又遇到丙．A、B两地的距离是多少米．
<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<gadget id="calculator">50 - 40</gadget>
<output>10</output>

<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">60 + 50</gadget>
<output>110</output>

<gadget id="calculator">100 * (3/2) * 110</gadget>
<output>16_500</output>

<result>16_500</result>