Jingjing walks to school every morning. If she walks 60 meters per minute, she will be late for 5 minutes. If she walks 75 meters per minute, she can arrive at school 2 minutes earlier. Ask Jingjing's distance to school? (profit and loss issue)
晶晶每天早上步行上学，如果每分钟走60米，则要迟到5分钟，如果每分钟走75米，则可提前2分钟到校．求晶晶到校的路程？(盈亏问题)
<gadget id="calculator">60 * 5</gadget>
<output>300</output>

<gadget id="calculator">75 * 2</gadget>
<output>150</output>

<gadget id="calculator">300 + 150</gadget>
<output>450</output>

<gadget id="calculator">75 - 60</gadget>
<output>15</output>

<gadget id="calculator">450 / 15</gadget>
<output>30</output>

<gadget id="calculator">30 + 5</gadget>
<output>35</output>

<gadget id="calculator">60 * 35</gadget>
<output>2_100</output>

<result>2_100</result>