The sales company spent c dollars on n computers and sold them all at p dollars per computer. The company later purchased 100 computers at the same unit price and sold them all at the price of y dollars per computer. What's the profit of this company from selling these two batches of computers?
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Apn - c + 100(y-c/n)
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Bpn - c + 100(y-c)
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Cp - c + 100(y-c/n)
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Dp - c + 100(y-c)
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Epn - c + 100y
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正确答案: A