Mathematics
Medium
Question
There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
A
870
B
435
✓ Official correct answer
C
30!
D
29! + 1
Community credibility
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A
870
No member explanations yet for this option.
B
435
No member explanations yet for this option.
C
30!
No member explanations yet for this option.
D
29! + 1
No member explanations yet for this option.