A car travels 30 kilometers in 0.5 hours, and it takes 3.5 hours to travel from the school to the Children's Palace at the same speed. How many kilometers is the distance from the school to the Children's Palace?
一辆汽车0.5小时行驶30千米，用同样的速度从学校到少年宫需要3.5小时，那么学校到少年宫相距多少千米？
<gadget id="calculator">30 / 0.5</gadget>
<output>60</output>

<gadget id="calculator">60 * 3.5</gadget>
<output>210</output>

<result>210</result>