Xiao Ming set off from home to school in the morning, walking 60 meters per branch. After walking for 2 minutes, his mother found that she forgot to bring the red scarf, and immediately started from home to chase at a speed of 70 meters per minute. In the end, she chased her at a distance of 50 meters from the school gate. superior. How many meters is the distance between Xiao Ming's home and the school?
小明早上从家里出发去学校，每分行60米，行了2分钟后，妈妈发现她忘带了红领巾，马上从家里出发以每分70米的速度去追，结果在离校门口50米处追上．小明家与学校相距多少米？
<gadget id="calculator">70 - 60</gadget>
<output>10</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 * (1/5) * 70</gadget>
<output>840</output>

<gadget id="calculator">840 + 50</gadget>
<output>890</output>

<result>890</result>