Quiz Time

What number should replace the question mark?

 

 

 

 

     6                            9                      7
    73                          67                    71
9      19                   6     13              8     ?

Give it a try and put your answers in the comments. Lets see who gets it first.

List of People who has solved this one...:-

1. Mr. Himanshu (07-Feb-2009)
2. frnz4ever777 (07-Feb-2009)
3. Anonymous
4. Mr. Ajay Kumar

Waiting for others....