Question

5. Twelve persons meet in a room and each shake hands with all the others. Find the
number of hand-shakes.​

Answer 1

Answer:

12 people shaking hands, so 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 66 handshakes.

Step-by-step explanation:

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Answer 2

Answer:

132 hand shakes

each individual is shaking hand with rest of all