11. Gauri, Hamida, Mary and Ishwari are friends. They are standing in a
circular manner. They can shake hands with each

11. Gauri, Hamida, Mary and Ishwari are friends. They are standing in a
circular manner. They can shake hands with each other only once. How
many times will the hand be shaken?
(1) 3 (2) 4 (3) 5 (4) 6​

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