94. At the end of a conference the 10 people
present all shake hands with each other once.
How many hand shakes will there be
altogether?
(A) 20
(B) 35
C) 45
(D) 55
Answers
Answered by
3
Answer:
45
Step-by-step explanation:
1 person shakes hand with 9 people
2 person shakes hand with 8 people
In this order the number of hand shakes decreases with each person.
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