In the following question, select the related number from the given alternatives.
4 : 17 : : 7 : ?
Expression : 4 : 17 : : 7 : ?
The pattern followed is = $$n:n^2+1$$
Eg = $$4:4^2+1=4:17$$
Similarly, $$7^2+1=49+1=50$$
=> Ans - (B)
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