A train travels 225 kilometers in 3 hours. With the same speed, it is 525 kilometers from point A to point B. How many hours will it take?
一列火车3小时行225千米，用同样的速度，从甲地到乙地有525千米，需要多少小时？
<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<gadget id="calculator">525 / 75</gadget>
<output>7</output>

<result>7</result>