In a meeting between two countries, each country has 12 delegates. All the delegates of one country shake hands with all delegates of the other country. Find the number of handshakes possible ?
In a meeting between two countries, each country has 12 delegates. All the delegates of one country shake hands with all delegates of the other country. Find the number of handshakes possible ?
A . 72
B . 144
C . 288
D . 234
Answer : B . 144
Explanation:
Total number of handshakes = 12 x 12 = 144
