Xiaohong goes to school by bicycle, 200 meters per branch. After riding for 5 minutes, she found that the tire was broken, so she had to push the cart and walk at the speed of cycling (2/5), so she arrived 15 minutes later than the scheduled time. How many points did Xiaohong actually spend from home to school?
小红骑自行车上学，每分行200米．骑5分后，她发现车胎坏了，只好改为推车步行，速度是骑车的(2/5)，这样比预定的时间迟到了15分．小红从家到学校实际用了多少分？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">200 * (2/5)</gadget>
<output>80</output>

<gadget id="calculator">15 * 80</gadget>
<output>1_200</output>

<gadget id="calculator">200 - 80</gadget>
<output>120</output>

<gadget id="calculator">1_200 / 120</gadget>
<output>10</output>

<gadget id="calculator">10 + 5 + 15</gadget>
<output>30</output>

<result>30</result>