The distance between places A and B is 2100 kilometers. Cars A and B are traveling towards each other from places A and B at the same time. The speed of car A is 65 kilometers per hour, and the speed of car B is 48 kilometers per hour. When starting out, a pigeon flies out of the car and flies towards car A at a speed of 75 kilometers per hour. When the pigeon meets car A, how many kilometers away is car B from point A?
A、B两地相距2100千米，甲、乙两车从A，B两地同时相向而行，甲车的速度是每小时65千米，乙车的速度是每小时48千米，乙车出发时，从车里飞出一只鸽子，以每小时75千米的速度向甲车飞去，在鸽子与甲车相遇时，乙车距离A地还有多少千米？
<gadget id="calculator">65 + 75</gadget>
<output>140</output>

<gadget id="calculator">2_100 / 140</gadget>
<output>15</output>

<gadget id="calculator">48 * 15</gadget>
<output>720</output>

<gadget id="calculator">2_100 - 720</gadget>
<output>1_380</output>

<result>1_380</result>