From home to school, Xiaohong walked at a speed of 50 meters per minute for 5 minutes, and found that she would be 4 minutes late if she kept walking like this. Later, she switched to a speed of 60 meters per minute and arrived at school 3 minutes earlier. How many meters does Xiaohong have to walk from home to school?
小红从家到学校，她以每分钟50米的速度走了5分钟后，发现这样走下去要迟到4分钟；后来她改用每分钟60米的速度前进，结果提前3分钟到校．小红从家到学校要走多少米．
<gadget id="calculator">50 * 4</gadget>
<output>200</output>

<gadget id="calculator">60 - 50</gadget>
<output>10</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">50 + 180</gadget>
<output>230</output>

<gadget id="calculator">200 + 230</gadget>
<output>430</output>

<gadget id="calculator">430 / 10</gadget>
<output>43</output>

<gadget id="calculator">43 + 4</gadget>
<output>47</output>

<gadget id="calculator">50 * 47</gadget>
<output>2_350</output>

<result>2_350</result>