There are 20 couples in a party. Every person greets every person except his or

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There are 20 couples in a party. Every person greets every person except his or her spouse. People of the same sex shake hands and those of opposite sex greet each other with a Namaste (It means bringing one's own palms together and raising them to the chest level). What is the total number of handshakes and Namaste's in the party?

Options:

A . 760

B . 1140

C . 780

D . 720

Answer: Option B

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