N employees of a company raised money to buy a gift of X for a former colleague. But in the end, 10 employees quit. How much more must the remaining employees pay on average?
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A$$\frac{x}{n(n+10)}$$
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B$$\frac{10x}{n(n+10)}$$
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C$$\frac{x}{n(n-10)}$$
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D$$\frac{10x}{n(n-10)}$$
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E$$\frac{x}{n-10}$$
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正确答案: D