Each person's performance compared with all other persons is to be done to rank them subjectively. How many comparison

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Q 2472645536.     Each person's performance compared with all other
persons is to be done to rank them subjectively. How
many comparisons are needed in total, if there are 11
persons?
IAS 2010 Prelims
A

`66`

B

`55`

C

`54`

D

`45`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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