It takes 0.25 hours for Teacher Wang to cycle 15 kilometers per hour from home to school. How far is it from home to school?
王老师从家骑车到学校每小时行15千米，要用0.25小时，家离学校有多远？
<gadget id="calculator">15 * 0.25</gadget>
<output>3.75</output>

<result>3.75</result>