It is known that the speed of the truck is (9/10) the speed of the passenger car. The two cars are traveling towards each other from two stations at the same time and meet at a distance of 3 kilometers from the midpoint. After the encounter, the two cars continue to move forward at their original speeds. When the passenger car arrives at station A, how many kilometers away is the truck from station B?
已知货车速度是客车速度的(9/10)，两车分别从两站同时相向而行，在离中点3千米处相遇．相遇后，两车分别用原来的速度继续前进，求当客车到达甲站时，货车离乙站还有多少千米远？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">10 + 9</gadget>
<output>19</output>

<gadget id="calculator">6 * 19</gadget>
<output>114</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">114 * (1/10)</gadget>
<output>57/5 = around 11.4</output>

<result>57/5 = around 11.4</result>