20 men shake hands with each other. Maximum no of handshakes without cyclic handshakes.	Choose the correct option.
A) 190 B) 200 C) 210 D) 220 E) 230
1st person will shake hand with 19 people   2nd person will shake hand with 18 people   3rd person will shake hand with 17 people   ......   total no. of handshakes = 19+18+17+...+3+2+1 = 19*(19+1)/2= 
<gadget id="calculator">19*(19+1)/2</gadget>
<output>190</output>
190   or, if there are n persons then no. of shakehands= nC2 = 20C2 = 190   190NSWER:190
<result>A</result>
20 men shake hands with each other. Maximum no of handshakes without cyclic handshakes.