In the board meeting of a FMCG Company, everybody present in the meeting shakes hand with everybody else. If the total number of handshakes is 78, the number of members who attended the board meeting is:
Total handshakes are given by: N$$C_2$$
N$$C_2$$ = 78
$$\frac{N*(N-1)}{2}$$ = 78
N=13
Hence, option D is the correct answer.
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