18 men shake hands with each other. Maximum no of handshakes without cyclic handshakes. Choose one:
A) 190
B) 153
C) 210
D) 220
E) 230
1st person will shake hand with 17 people   2nd person will shake hand with 16 people   3rd person will shake hand with 15 people   ......   total no. of handshakes = 17+...+3+2+1 = 17*(17+1)/2= 
<gadget id="calculator">17*(17+1)/2</gadget>
<output>153</output>
153   or, if there are n persons then no. of shakehands= nC2 = 18C2 = 153   ANSWER:153
<result>B</result>
18 men shake hands with each other. Maximum no of handshakes without cyclic handshakes.