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in Mathematics by (71.7k points)

A student is allowed to select at most n books from a collection of 2n + 1 books. If the total number of ways in which he can select at least one book is 1023, then the value of n is 

(1) 3 

(2) 4 

(3) 5 

(4) 6

1 Answer

+1 vote
by (79.8k points)
selected by
 
Best answer

Correct option (3) 5

Explanation: 

We must have

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