If a car travels 60 kilometers per hour from point A to point B, it will take 7 hours to get there. If it needs to arrive 1 hour earlier, how many kilometers per hour will it take? (answer with ratio)
一辆汽车从甲地到乙地，如果每小时行60千米，需要7小时才能到达，如果要提前1小时到达，每小时要行多少千米？(用比例解答)
<gadget id="calculator">60 * 7</gadget>
<output>420</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">420 / 6</gadget>
<output>70</output>

<result>70</result>