The distance between city A and city B is 496km. Kaka drives from city A to city B at 32km per hour. After the truck leaves (1/2) hour, the bus drives from city B to city A at 64km per hour. Hours later to meet the truck?
甲城与乙城相距496km，卡卡从甲城开往乙城，每小时行32km，卡车开出(1/2)时后，客车从乙城开往甲城，每小时行64km，客车几小时后才能与卡车相遇？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">32 * (1/2)</gadget>
<output>16</output>

<gadget id="calculator">496 - 16</gadget>
<output>480</output>

<gadget id="calculator">32 + 64</gadget>
<output>96</output>

<gadget id="calculator">480 / 96</gadget>
<output>5</output>

<result>5</result>