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In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.

3 6 8
5 8 4
4 7 ?

Option:
A. 6
B. 7
C. 8
D. 9
Answer: A . 6

Justification:

Clearly, sum of numbers in each row is 17.
So, missing number = 17 - ( 4 + 7 ) = 6.

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