Two people, A and B, set off from school to the river at the same time. A travels 15 kilometers per hour, and B travels 20 kilometers per hour. On the way, B stopped for 24 minutes to repair the car, but the two arrived at the riverside at the same time. How many kilometers does it take to travel from school to the riverside?
甲、乙二人同时从学校骑车出发去江边，甲每小时行15千米，乙每小时行20千米．途中乙因修车停留了24分钟，结果二人同时到达江边．从学校到江边要行多少千米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">15 * (2/5)</gadget>
<output>6</output>

<gadget id="calculator">20 - 15</gadget>
<output>5</output>

<gadget id="calculator">6 / 5</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">20 * (6/5)</gadget>
<output>24</output>

<result>24</result>