Mom set off from home to school to pick up Xiaohong. Mom walked 75 meters per minute. After her mother walked for 3 minutes, Xiaohong started from school, and Xiaohong walked 60 meters per minute. After another 20 minutes, mother and Xiaohong met. How many meters is it from Xiaohong's house to school?
妈妈从家出发到学校去接小红，妈妈每分钟走75米．妈妈走了3分钟后，小红从学校出发，小红每分钟走60米．再经过20分钟妈妈和小红相遇．从小红家到学校有多少米？
<gadget id="calculator">75 + 60</gadget>
<output>135</output>

<gadget id="calculator">135 * 20</gadget>
<output>2_700</output>

<gadget id="calculator">75 * 3</gadget>
<output>225</output>

<gadget id="calculator">2_700 + 225</gadget>
<output>2_925</output>

<result>2_925</result>