Question 9
Four numbers have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Solution
(A) : $$325=(18)^2+1$$
(B) : $$577=(24)^2+1$$
(C) : $$215=(6)^3-1$$
(D) : $$442=(21)^2+1$$
=> Ans - (C)
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