4 | ? | 7 |
3 | 5 | 7 |
8 | 6 | 1 |
A) 9
B) 8
C) 6
D) 4
E) None of these
Correct Answer: D
Solution :
Explanation: [d] is correct. Sum of all Row and sum of all column is equal.You need to login to perform this action.
You will be redirected in
3 sec