An arsenal originally planned to produce 200 rocket launchers per month. After technological innovation, the output in eight months exceeded the annual plan of 160. Now the average monthly production of rocket launchers is how many.
一家兵工厂原计划每月生产火箭炮200架，技术革新后，8个月的产量就超过全年计划160架，现在平均每月生产火箭炮多少架．
<gadget id="calculator">200 * 12</gadget>
<output>2_400</output>

<gadget id="calculator">2_400 + 160</gadget>
<output>2_560</output>

<gadget id="calculator">2_560 / 8</gadget>
<output>320</output>

<result>320</result>