A) 215
B) 225
C) 290
D) 292
Correct Answer: C
Solution :
[c] The relationship is \[({{x}^{2}}-1):[{{(x+4)}^{2}}+1].\] Since, \[168={{(13)}^{2}}-1,\] so required number \[={{(13+4)}^{2}}+1={{(17)}^{2}}+1=290.\]
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