Question

After a meeting, every participant shakes
hands with every other participants. If the
number of handshakes is 66, find the number
of participants in the meeting.

Answer 1

Answer:

12 person in the meeting

Answer 2

Step-by-step explanation:

12 persons

At a meeting ,everyone shook hands with everybody else. There were 66 handshakes. How many people were at the meeting? -11 is ruled out so the answer is 12 persons...

0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don't forget to count the person who shakes 0 hands)...

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