From A to B, it takes 10 hours by bicycle and 2 hours by car. Given that the speed of a bicycle is 15 kilometers per hour, what is the speed of a car in kilometers per hour?
从甲地到乙地，骑自行车要10小时，开汽车要2小时．已知骑自行车的速度是每小时15千米，求汽车速度是每小时多少千米？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 15</gadget>
<output>75</output>

<result>75</result>