Cars A and B respectively start from A and B at the same time and drive toward each other. When starting, the speed of A car is (2/3) of the speed of B car. After they arrive at B and A respectively, the speed of car A increases by 1/4, and the speed of car B decreases by 1/6. If the distance between the first meeting and the second meeting is 74 kilometers, how many kilometers are the distance between A and B?
甲、乙两车分别从A、B两地同时出发相向而行，出发时甲车速度为乙车速度的(2/3)．他们分别到达B地和A地后，甲车速度提高四分之一，乙车速度减少六分之一．如果他们第一次相遇与第二次相遇地点相距74千米，那么A、B两地相距多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">4 * (5/4)</gadget>
<output>5</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 - (5/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">(7/12) / 2</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(5/12) - (2/5)</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(7/24) + (1/60)</gadget>
<output>37/120 = around 0.308333</output>

<gadget id="calculator">74 / (37/120)</gadget>
<output>240</output>

<result>240</result>