The road from A to B is 436km long. Two cars start from the two places and drive towards each other. After how many hours did the two cars meet?
甲地到乙地的公路长436km，两辆汽车从两地出发，相向而行，甲车每小时行驶42km，乙车每小时行驶46km，甲车开出2小时后，乙车才出发，再经过几小时两车相遇？
<gadget id="calculator">42 * 2</gadget>
<output>84</output>

<gadget id="calculator">436 - 84</gadget>
<output>352</output>

<gadget id="calculator">42 + 46</gadget>
<output>88</output>

<gadget id="calculator">352 / 88</gadget>
<output>4</output>

<result>4</result>