A and B are walking towards each other at the same time. After 3 hours, they drive the whole distance (5/16). How many hours will it take to complete the journey? (Use proportions to answer.)
A、B两地甲乙同时相对而行，3小时后两人行驶了全程的(5/16)，行完全程需要多少小时？(用比例解答．)
<gadget id="calculator">5 / 16</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">3 / (5/16)</gadget>
<output>48/5 = around 9.6</output>

<result>48/5 = around 9.6</result>