Select the related word/letters/number from the given alternatives.
170 : 13 : : 257 : ?
Expression =Â 170 : 13 : : 257 : ?
The pattern followed is = $$x^2+1:x$$
Eg :- $$13^2+1:13=170:13$$
Similarly, $$(16)^2+1=256+1=257$$
Thus, 257Â :Â 16
=> Ans - (B)
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