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Solve
-Within a Group of N People, the Number of Possible

Question 47

Multiple Choice

Solve.
-Within a group of n people, the number of possible handshakes, N, is given byby N=12(n2−n) N = \frac { 1 } { 2 } \left( n ^ { 2 } - n \right) n) . How many handshakes are possible at a meeting if 18 people are present?


A) 306 handshakes
B) 144 handshakes
C) 153 handshakes
D) 171 handshakes

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