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.
| 7 | 9 | 21 | 27 |
| 4 | 2 | 36 | 18 |
| 9 | 4 | 54 | ? |
Option:
A. 18
B. 24
C. 36
D. 58
Answer: B . 24
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Justification:
In the first row, 7 x 3 = 21, 9 x 3 = 27.
In the second row, 4 x 9 = 36, 2 x 9 = 18.
In the third row, 9 x 6 = 54.
.'. Missing number = 4 x 6 = 24.
