Question
Download Solution PDFIn a meeting of 45 people, there are 40 people who know one another and the remaining know no one. People who know each other only hug, whereas those who do not know each other only shake hands. How many handshakes occur in this meeting?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Total people in meeting is 45 and out of then 40 people know each other.
So 5 people don't know anyone.
Let those 5 peoples be A, B, C, D, E
So A will handshake 44 people.
B will handshake 43 people
C will handshake 42 people
D will handshake 41 people
and E will handshake 40 people
Hence total handshake = 44 + 43 + 42 + 41 + 40 = 210
Option (3) is correct
Last updated on Jun 23, 2025
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