Xiaoming and Xiaoyong's house is 400 meters apart, and they are both on the east side of the school. Xiao Ming walks 75 meters per minute, and Xiao Yong's home is farther away from school than Xiao Ming's. In order to ensure that both of them arrive at school at the same time within 16 minutes, how many meters must Xiaoyong walk per minute?
小明和小勇家相距400米，并且都在学校的东边．小明每分钟走75米，小勇家距学校比小明家距学校远．为了保证两人都用16分钟同时到校，小勇每分钟必须走多少米？
<gadget id="calculator">75 * 16</gadget>
<output>1_200</output>

<gadget id="calculator">1_200 + 400</gadget>
<output>1_600</output>

<gadget id="calculator">1_600 / 16</gadget>
<output>100</output>

<result>100</result>