A student is allowed to select at most \( \mathrm{n} \) books from a collection of \( (2 n-1) \)...
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A student is allowed to select at most \( \mathrm{n} \) books from a collection of \( (2 n-1) \) books. If the total number of ways in which he can select a book is 63 , then the value of \( n \).
(A) 6
(B) 3
(C) 4
(D) none of these
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