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A group of ten students shake hands with...

A group of ten students shake hands with one another among themselves. What is the total number of shaking of hands? `A. 20` `B. 56` `C. 90` `D. 45`

A

20

B

56

C

90

D

45

Text Solution

Verified by Experts

The correct Answer is:
C
Every student shakes hand . with other 9 students, hence total number of handshakes
`=10xx(10-1)=90`
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