The distance between A and B is 330 kilometers. The truck travels from A to B at 70 kilometers per hour. The bus travels from B to A at 60 kilometers per hour. The truck travels first for 1 hour and asks later. When did the two cars meet?
甲、乙两地相距330千米，货车从甲地开往乙地，每时行70千米，客车从乙地开往甲地，每时行60千米，货车先行1小时，问再过几时两车相遇？
<gadget id="calculator">330 - 70</gadget>
<output>260</output>

<gadget id="calculator">70 + 60</gadget>
<output>130</output>

<gadget id="calculator">260 / 130</gadget>
<output>2</output>

<result>2</result>