The distance between A and B is 750 kilometers. If a car travels at a speed of 50 kilometers per hour, how many hours will it take to reach B? (List the equations with unknowns and solve them again)
甲乙两地相距750千米，一辆汽车以每小时50千米的速度行驶，多少小时可以到达乙地？(列出含有未知数的等式再解)
<gadget id="calculator">750 / 50</gadget>
<output>15</output>

<result>15</result>