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Everybody in a room shakes hands with ev...

Everybody in a room shakes hands with everybody else. The total number of shake hands is 66. The number of persons in the room is ……….. .

A

10

B

14

C

12

D

8

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT SSC-PERMUTATIONS & COMBINATIONS -INTRODUCTORY EXERCISE -(19.5 )
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