| 5 | 9 | 7 |
| 4 | 5 | 3 |
| 1 | 6 | 8 |
| 40 | 100 | ? |
A) 70
B) 60
C) 50
D) 80
Correct Answer: C
Solution :
In first column:\[{{5}^{2}}+{{4}^{2}}-1=40\]; In second column: \[{{9}^{2}}+{{5}^{2}}-6=100\] \[\therefore \]In third column: \[{{7}^{2}}+{{3}^{2}}-8=50\]
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