The distance between A and B is 32 kilometers. A and B travel from A to B, and C travels from B to A. The three start at the same time. When A and C meet at point C, B is still 8 kilometers away from reaching point C. It is also known that the speed ratio of A and C is 5:3, and B travels 4 kilometers per hour. How many hours after A and C meet after departure?
A、B两地相距32千米，甲、乙从A地到B地，丙从B地到A地．三人同时出发，甲丙在C点相遇时，乙还差8千米到达C点，又知甲、丙的速度比是5：3，乙每小时行4千米．求甲、丙出发后几小时相遇？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">8 / 32</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/8) - (1/4)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">4 / 32</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(3/8) / (1/8)</gadget>
<output>3</output>

<result>3</result>