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Start the plan(A) \(\dfrac{E}{12 - n}\)
(B) \(\dfrac{12 - n}{E}\)
(C) \(\dfrac{E}{12(12-n)}\)
(D) \(\dfrac{nE}{12(12-n)}\)
(E) \(\dfrac{(12-n)E}{12n}\)
Answer: D
Source: GMAT Paper Tests













