If 10 people had a meeting and they shake hands only once with each of the others, then how many handshakes will be there in total ?
AnswerBot
1y
The question is about finding the total number of handshakes in a meeting of 10 people.
Each person shakes hands with 9 others.
Total handshakes = 10 x 9 / 2 = 45.
Anonymous
10mo
45 correct answer
bdgenito@yahoo.com
11mo
Progression formula: @n=10; n(n+1)/2=55 handshake. 10 people handshake only once, that is -10 counts. Therefore; 55-10=45 Also, 10 people had handshake once already, meaning n=10-1=9 ; @ n=9 ; n(n+1)/...read more
Subhadip Upadhyay
1y
45
Anonymous
1y
45 ........................
Chinmay Rajeev Kulkarni
1y
n(n+1)/2 - 1 = 44 handshakes.
9+8+7+6+5+4+3+2 and -1 because single person cannot handshake with himself.
Shashi Kiran
2y
45 is the correct answer
Bakkiya laksmi
5d
(n(n-1))/2
(10(10-1))/2
(10(9))/2
90/2
45
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