18 : 162 :: 36 : ?
Expression =Â 18 : 162 :: 36 : ?
The pattern followed is = $$n:\frac{n^2}{2}$$
Eg = $$18:\frac{18^2}{2}=18:162$$
Similarly, $$\frac{36^2}{2}=\frac{1296}{2}=648$$
=> Ans - (D)
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