car travels an average of 90 kilometers per hour. From 8:00 a.m. to 3:00 p.m., how many kilometers has it traveled in total?
一辆汽车平均每小时行驶90千米，从上午8点到下午3点时，一共行驶了多少千米？
<gadget id="calculator">15 - 8</gadget>
<output>7</output>

<gadget id="calculator">90 * 7</gadget>
<output>630</output>

<result>630</result>