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.
| 6 | 6 | 8 |
| 5 | 7 | 5 |
| 4 | 3 | ? |
|
120 |
126 | 320 |
Option:
A. 4
B. 8
C. 12
D. 16
Answer: B . 8
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Justification:
Clearly, (1st row) x (2nd row) x (3rd row) = 4th row.
In the first column, 6 x 5 x 4 = 120
In the second column, 6 x 7 x 3 = 126.
Let the missing number in the third column be y.
Then, 8 x 5 x y = 320 or y = 8.
