Question: in a party every person shakes hands with every other person . if there were a total of 153 handshakes in the party then what is the number of persons present in the party ?
A) 15
B) 16
C) 17
D) 18
E) 19
Correct answer: D
Grade: 8 | Topic: Expressions and Equations | Difficulty: Medium | Standard: 8.EE.C.7