20 men handshake with each other without repetition. What is the total number of handshakes made?
A. 190
B. 210
C. 150
D. 250
E. None of these
Answer: Option A
Solution (By Examveda Team)
Choosing 2 people out of 20 will result in a handshake and the same can be done in 20C2 ways$${ \Rightarrow ^{20}}{C_2} = \frac{{20 \times 19}}{{2!}} = 190$$
This Question Belongs to Arithmetic Ability >> Permutation And Combination
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