Question : Directions: In the following question, select the number which can be placed at the sign of the question mark (?) from the given alternatives.
| 5 | 4 | 3 |
| 8 | 7 | 1 |
| 6 | 2 | 9 |
| 38 | 15 | ? |
Option 1: 16
Option 2: 12
Option 3: 28
Option 4: 13
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Correct Answer: 28
Solution : Here, the multiplication of the first and third rows is added to the second row which equals the fourth row of the matrix.
In the first column; 5 × 6 + 8 = 30 + 8 = 38
In the second column; 4 × 2 + 7 = 8 + 7 = 15
In the third column; 3 × 9 + 1 = 27 + 1 = 28
So, the missing term is 28. Hence, the third option is correct.
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