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.
| 1 | 2 | 3 |
| 11 | 7 | 5 |
| 120 | 45 | ? |
Option:
A. 19
B. 17
C. 16
D. 15
Answer: C . 16
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Justification:
In the first column, 112 - 12 = 121 - 1 = 120.
In the second column, 72 - 22 = 49 - 4 = 45.
.'. In the third column, missing number = 52 -32 = 25 - 9 = 16.
