There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

There are 30 people in a group. If all shake hands with one another ,

1.	There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
A.	870
B.	435
C.	30!
D.	29! + 1
Answer» C. 30!

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There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

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