A) 67
B) 66
C) 37
D) 36
E) 68
Correct Answer: C
Solution :
Let the total no. of persons in the party be n Total no. of handshakes \[^{n}{{C}_{2}}=666\] \[\frac{n\times (n-1)}{2}=666\] \[{{n}^{2}}-n-1332=0\] or\[{{n}^{2}}-37n+36-1332=0\] \[(n-37)(n+36)=0\] \[n=-36+37\] Hence, no. of people =37You need to login to perform this action.
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