SSC CPO SI and ASI Model Paper 3

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Question : 101 of 200

Marks: +1, -0

When simplified, the product

[1-1/7][1-1/8].........[1-1/{N+2}]

is equal to

$6/ {n + 2 }$
$5 /{n + 2 }$
$5 /{n +1 }$
$6/{ n +1}$

Solution:

(1)

[1- 1/7][1 -1/ 8].........1- 1/{n +2}

=6/7× 7/8× 8 /9×........×{n+1}/{n+2}

=6/{n + 2}

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