请教一道面试题，supply chain# JobHunting - 待字闺中
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面试一家maufacturer的global sourcing职位，有一道面试题不会，请大家帮我看看。谢谢！
Sales:
month 1 2 3 4 5 6 7 8 9 10 11 12
Y06 1000 1000 1500 1500 1500 1500 2000 2000 2000 1500 1000 1000
Y07 2000 200 2000 2000 2500 500 2500 3000 3000 2000 2000 500
Y08 2500 2500 3000 3000 3000 3000 3500 4000 4000
Please calculate monthly order quantity for 10,11,12 of year 2008 and 2009
End of Sept , 2008 inventory is 6000 and we should have 2 month sales quantity as an inventory
It takes 2 month for production and 1 month for transportation
Existing orders for July is 2000, August is 1000, September is 3000
Sales:
month 1 2 3 4 5 6 7 8 9 10 11 12
Y06 1000 1000 1500 1500 1500 1500 2000 2000 2000 1500 1000 1000
Y07 2000 200 2000 2000 2500 500 2500 3000 3000 2000 2000 500
Y08 2500 2500 3000 3000 3000 3000 3500 4000 4000
Please calculate monthly order quantity for 10,11,12 of year 2008 and 2009
End of Sept , 2008 inventory is 6000 and we should have 2 month sales quantity as an inventory
It takes 2 month for production and 1 month for transportation
Existing orders for July is 2000, August is 1000, September is 3000