During the summer vacation, Xiao Ming went back to his hometown to visit his grandparents. The car left Kunming at 10:00 am and arrived at 3:00 pm. The car traveled an average of 60 kilometers per hour. How many kilometers are there between the two places?
暑假里小明回老家看望爷爷奶奶，汽车上午10时从昆明开出，下午3时到达，这辆汽车平均每小时行驶60千米，两地相距多少千米？
<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<gadget id="calculator">60 * 5</gadget>
<output>300</output>

<result>300</result>