User Forum

Subject :IMO    Class : Class 3

Two guests shake hands exactly once with one another. How many handshakes are exchanged among nine guests?
(a) 36
(b) 42
(c) 35
(d) 30


Ans 1:

Class : Class 6
How, please explain

Ans 2: (Master Answer)

Class : Class 1
The correct answer is A.

Post Your Answer