Question

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

5	9	8	7
8	6	9	10
7	13	?	19
5	7	8	9

• A. $9$
• B. $10$
• C. $12$
• D. $15$

Answer 1

The correct option is D $15$

First column $\to (5+8+7)÷4=5$
Second column $\to (9+6+13)÷4=7$
Fourth column $\to (7+10+19)÷4=9$
Let the missing number be $x$.
Then, in the third column, we have :
$(8+9+x)÷4=8$
$\Rightarrow 17+x=32$
$\Rightarrow x=15$.
Hence, option $D$ is the correct answer.