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10 factories, working for \(h\) hours per day, can produce \(P\) units of cars in every 5 days. Each factory produces a car at the same constant rate. What is the additional time taken by the 10 factories to produce \(2P\) units of cars, if they work for \(\frac{h}2\) hours per day instead of \(h\) hours per day?
A. 0
B. 2
C. 5
D. 10
E. 20
Answer: D
Source: e-GMAT
A. 0
B. 2
C. 5
D. 10
E. 20
Answer: D
Source: e-GMAT
