Two people, A and B, start from A and B respectively and walk towards each other. Their speed ratio is 3:2 when they start. After they meet for the first time, A’s speed increases by 20%, and B’s speed increases. 30%. In this way, when A arrives at B, B is still 28 kilometers away from A, so how many kilometers is the distance between A and B?
甲、乙两人分别从A、B两地出发，相向而行，出发时他们的速度比是3：2，他们第一次相遇后，甲的速度提高了20%，乙：的速度提高了30%．这样，当甲到达B地时，乙离A还有28千米，那么A、B两地间的距离是多少千米？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">(2/3) * (13/10)</gadget>
<output>13/15 = around 0.866667</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 * (6/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(13/15) / (6/5)</gadget>
<output>13/18 = around 0.722222</output>

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

<gadget id="calculator">(13/18) * (2/5)</gadget>
<output>13/45 = around 0.288889</output>

<gadget id="calculator">(3/5) - (13/45)</gadget>
<output>14/45 = around 0.311111</output>

<gadget id="calculator">28 / (14/45)</gadget>
<output>90</output>

<result>90</result>