car travels from City A to City C through City B for a total of 39 hours. The car travels 110 kilometers per hour from City A to City B, and 75 kilometers per hour from City B to City C. It is known from The time taken from city A to city B is 3 hours less than the time taken from city B to city C, how many kilometers is the total distance from city A to city C?
一辆汽车从甲城经过乙城开往丙城，共行驶了39小时，汽车从甲城到乙城每小时行驶110千米，从乙城到丙城每小时行驶75千米，已知从甲城到乙城所用的时间比从乙城到丙城所用的时间少3小时，求从甲城到丙城一共多少千米？
<gadget id="calculator">39 - 3</gadget>
<output>36</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">110 * 18</gadget>
<output>1_980</output>

<gadget id="calculator">18 + 3</gadget>
<output>21</output>

<gadget id="calculator">75 * 21</gadget>
<output>1_575</output>

<gadget id="calculator">1_980 + 1_575</gadget>
<output>3_555</output>

<result>3_555</result>