2. Questions Bank
  3. 3rd Class
  4. Mental Ability
  5. Days and Dates & Possible Combinations

3rd Class Mental Ability Days and Dates & Possible Combinations Question Bank Days and Dates & Possible Combinations

  • question_answer
    There were 6 children. Eah child shook hands once with each other. How many handshakes took place?

    A)  16                              

    B)  14                                          

    C)  15                                          

    D)  20

    Correct Answer: C

    Solution :

    : 6 children : (P, Q, R, S, T and U) Possible combination of handshakes: (P, Q), (P,R), (P,S), (P,T), (P,U,) (Q,R) (Q,S), (Q,T), (Q,U), (R,S), (R,T), (R,U), (S,T), (S,U), (T,U).


You need to login to perform this action.
You will be redirected in 3 sec spinner