Two cars A and B drove towards each other from two places at the same time and met after 2 hours. When they met, car A traveled the whole distance (3/5). If two cars A and B drive in the same direction from two places at the same time, how many hours will it take for A to catch up with B?
甲乙两辆汽车同时从两地相向开出2小时后相遇，相遇时甲车行了全程的(3/5)．如果甲乙两辆汽车同时从两地同向开出多少小时后甲车追上乙车．
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

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

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>