Xiaolong and Xiaojun set off at the same time from two houses 750 meters apart and walk towards each other. It is known that Xiaolong walks 70 meters per minute. They meet after 5 minutes. How many meters does Xiaojun walk per minute?
小龙与小军相约同时从相距750米的两家出发，相对而行，已知小龙每分钟走70米，他俩经过5分钟后相遇，小军每分钟走多少米？
<gadget id="calculator">750 / 5</gadget>
<output>150</output>

<gadget id="calculator">150 - 70</gadget>
<output>80</output>

<result>80</result>