Home » There are 28 persons present at a press conference. After the conference they all shake hands with each other. If 7 of them refuse to shake hands at all, then how many handshakes will be there altogether?
There are 28 persons present at a press conference. After the conference they all shake hands with each other. If 7 of them refuse to shake hands at all, then how many handshakes will be there altogether?
June 24, 2023
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Question
There are 28 persons present at a press conference. After the conference they all shake hands with each other. If 7 of them refuse to shake hands at all, then how many handshakes will be there altogether?
Type
multiple_choice
Option
420
incorrect
Option
210
correct
Option
378
incorrect
Option
231
incorrect
Solution : 21 persons shake hands with each other Required total hand shake =
