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Earn +20 ptsQ: How many handshakes will be made if 20 people shake hands?
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After a Student Council meeting all 14 members shook hands with every member How many handshakes were made?
91
Everybody in a party shakes hands with everybody else the total number of persons in the room are 12How many ways are there of shaking hands?
66 total handshakes are made. See related question at the bottom for the explanation.
At a party everyone shook hands with everybody else There were 66 handshakes How many people were at the party?
Each handshake involved 2 people so 12 guests: Guest A made 11 handshakes, B 10 having already been counted as an A-B handshake, C 9 etc for 2 ppl thr is 1 hand shakefor 3 thr is 3(1+2)for 4 thr is 6(1+2+3)hence12 ppl coz..sum of 1st 11 is 66...
Brian made 3 pizzas and cut them into eighths How many people can he serve if each person eats 4 pieces?
Brian can serve 6 people.
What payment made by one land or people to the ruler of another in order to gain the protection of that ruler?
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