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Trigonometry Properties of Triangles
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Q.
A person is permitted to select at least one and at most n coins from a collection of (2n + 1)distinct coins. If the total number of ways in which he can select coins is 255, then n equals
A.
4
B.
8
C.
16
D.
32
E.
None of the above
View Answer
Correct choice: A
Explanation:
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