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Q 2413245140.     In a society it is customary for friends of the same sex
to hug and for friends of opposite sex to shake hands
when they meet. A group of friends met in a party
and there were `24` handshakes.
Which one among the following numbers indicates
the possible number of hugs?
IAS 2015 Prelims
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)