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  1. (1 - 1/3) (1 - 1/4) (1 - 1/5 )... (1 - 1/n ) = ?
    1. 1/n
    2. 2/n
    3. 2(n - 1)/n
    4. 2(n + 1)/n
Correct Option: B

Given Exp.= (1 - 1/3) (1 - 1/4) (1 - 1/5)...(1 - 1/n)
= (2/3) x (3/4) x (4/5) x ... x (n-1/n)
= 2/n.


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