If a classmate walks from home to school at a speed of 50 meters per minute, he will be late for 3 minutes. If he walks at a speed of 70 meters per minute, he can arrive at school 5 minutes earlier. What is the distance from his home to school? rice.
一位同学从家到学校，如果以每分钟50米得速度行走，就迟到3分钟，如果以每分钟70米得速度行走，就可以提前5分钟到学校，从他家到学校的距离是多少米．
<gadget id="calculator">5 * 70</gadget>
<output>350</output>

<gadget id="calculator">3 * 50</gadget>
<output>150</output>

<gadget id="calculator">350 + 150</gadget>
<output>500</output>

<gadget id="calculator">70 - 50</gadget>
<output>20</output>

<gadget id="calculator">500 / 20</gadget>
<output>25</output>

<gadget id="calculator">25 * 50</gadget>
<output>1_250</output>

<gadget id="calculator">1_250 + 150</gadget>
<output>1_400</output>

<result>1_400</result>