\( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) can do a piece of work in 8 days. \( \mathrm{B...

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\( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) can do a piece of work in 8 days. \( \mathrm{B} \) and \( \mathrm{C} \) together can do it in 24 days. \( \mathrm{B} \) alone can do it in 40 days. In how many days can \( \mathrm{C} \) alone do the work?
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