A) 124
B) 126
C) 215
D) 217
Correct Answer: A
Solution :
The pattern is \[{{1}^{3}}-1,{{2}^{3}}-1,\text{ }{{3}^{3}}-1,{{4}^{3}}-1,.....\] \[\therefore \]Missing number \[=53-1=124.\]
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