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Mathematics, 12.03.2022 18:30 506132

Jim and his wife, Pam, went to a Valentine’s Day party where four other married couples were present. Every person shook hands with everyone he or she did not know. When they sat down for dinner, Jim asked everyone, including Pam, how many hands they shook. To his surprise, Jim receivednine different answers. How many hands did Pam shake?

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