Vehicles A and B travel towards each other from A and B respectively, and return immediately after arriving at A and B. The second meeting point is 25 kilometers away from B. It is known that the speed ratio of A and B is 2:3. Find the whole journey between AB and AB.
甲乙两车分别从A、B两地相向而行，到达A、B后立即返回，第二次相遇点离B地25千米，已知甲乙两车速度比为2：3．求AB两地全程．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 25</gadget>
<output>50/3 = around 16.666667</output>

<gadget id="calculator">25 + (50/3)</gadget>
<output>125/3 = around 41.666667</output>

<gadget id="calculator">(2/3) * 2</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(4/3) - 1</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(125/3) / (1/3)</gadget>
<output>125</output>

<result>125</result>