52. In a party, 15 people shake their hands with each
other. How many handshakes take place?
(A) 105
(B) 120
(C) 135
(D) 165
Answers
Answered by
0
Answer:
n(n-1)/2
=15(14)/2
=105 Hand shakes
Answered by
0
Answer:
it's 105
you have to multiply 15 and 14 and divide it by 2
it is because a person cannot handshake with oneself so 15 - 1
every person has 2 hands so you can divide it by 2
this is it
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