Cars A and B depart from AB, which is 98 kilometers apart, and Car B will start 1 hour after Car A departs. It is known that car A travels 8 kilometers per hour, and car B is 2 kilometers faster than car A per hour. How many hours after car B leaves, the two cars meet?
甲、乙两车从相距98千米的AB两地相对开出，甲车出发1小时后，乙车才出发．已知甲车每小时行驶8千米，乙车每小时比甲车快2千米，乙车出发几小时后两车相遇？
<gadget id="calculator">98 - 8</gadget>
<output>90</output>

<gadget id="calculator">8 + 2 + 8</gadget>
<output>18</output>

<gadget id="calculator">90 / 18</gadget>
<output>5</output>

<result>5</result>