Two cars A and B start from A and B at the same time, drive toward each other, and meet each other after 3 hours. The speed ratio of A and B is 4:3. A travels 60 kilometers per hour. How many kilometers away are the places?
甲、乙两辆汽车同时从A、B两地出发，相向而行，3小时后相遇，甲、乙两车的速度比是4：3，甲车每小时行60千米，A、B两地相距多少千米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 * (3/4)</gadget>
<output>45</output>

<gadget id="calculator">45 + 60</gadget>
<output>105</output>

<gadget id="calculator">105 * 3</gadget>
<output>315</output>

<result>315</result>