In a meeting between 2 countries each country has 12 delegates. All the delegates of one country shake hands with all delegates of other countries.Find the number of handshakes possible?

a. 72
b. 144
c. 288
d. None

• total no. of hand shakes between all delegates(both the contries)=24C2
  no. of hand shakes between peole of same country=12C2
  no. of hand shakes between delegates of one contry with delages of another country =(24C2-12C2-12C2)=144
• 11 years agoHelpfull: Yes(9) No(0)
• its so simple...12*12 =144
• 11 years agoHelpfull: Yes(7) No(0)
• 12*12 it will be
• 11 years agoHelpfull: Yes(2) No(0)
• each pople from one country will shake hand will 12 people's of other country,
  Therefore total handshakes will be 12*12=144. Ans.
• 11 years agoHelpfull: Yes(1) No(0)