If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________?

If ‘N’ is the number of shafts used, then the total number of fece

1.	If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________?
A.	2N
B.	N + 2
C.	2 N + 1
D.	2 N + 2
Answer» E.

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If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________?

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