Question:
Fifteen persons in a meeting shake hands with each other. How many handshakes were interchanged?
A95
B105
C68
D116
Answer:
B. 105
Explanation:
No. of shake hand = n(n=1)/2 = 15(15=1)/2 = (15x14)/2 = 15x7 = 105
Related Questions:
Question:
A95
B105
C68
D116
Answer:
No. of shake hand = n(n=1)/2 = 15(15=1)/2 = (15x14)/2 = 15x7 = 105
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