In a party every person shakes hands with every other person. If there were a total of 190 handshakes in the party then what is the number of persons present in the party ?	Choose the correct choice from the following choices:
A) 15
B) 16
C) 17
D) 18
E) 20
20xplanation :   Let the number of persons be n   âˆ´ total handshakes = nC2 = 190   n(n-1)/2 = 190 âˆ´ n = 20   Answer : Option 20
<result>E</result>
In a party every person shakes hands with every other person. If there were a total of 190 handshakes in the party then what is the number of persons present in the party ?