The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months the production was 1,200 units. The average monthly production of the year will be_____________?

(A)  5031.10 units (X)
(B) 4021.12 units (X)
(C)  2066.55 units  ()
(D) 3012.11 units (X)

Answers:  The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months the production was 1,200 units. The average monthly production of the year will be 2066.55 units.