Select the option that is related to the third numberin the same way as the second number is related to the first number.
1 : 121 :: 5 : .......
Expression = 1 : 121 :: 5 : ?
The pattern followed is = $$x:(x+10)^2$$
Eg :- $$(1+10)^2=(11)^2=121$$
Similarly, $$(5+10)^2=(15)^2=225$$
=> Ans - (A)
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