At the end of a meeting all the person present shook hands with other each once The total number of ‘handshakes’ is 15 Number of persons present in the meeting is?
A. 5
B. 6
C. 7
D. 8
Answer:B
At the end of a meeting all the person present shook hands with other each once The total number of ‘handshakes’ is 15 Number of persons present in the meeting is?
A. 5 B. 6 C. 7 D. 8