Xiaojun participated in the winter sunshine sports long-distance running exercise, and ran a total of 1600 meters in the first two days. According to this calculation, how many kilometers can he run in a week (5 days)?
小军参加冬季阳光体育长跑锻炼，前两天共跑了1600米．照这样计算，他一个星期(5天)共可以跑多少千米？
<gadget id="calculator">1_600 / 2</gadget>
<output>800</output>

<gadget id="calculator">800 * 5</gadget>
<output>4_000</output>

<result>4_000</result>