Select the related number from the given alternatives.
39 : 52 :: 51 : ?
Expression =Â 39 : 52 :: 51 : ?
The pattern followed is = $$3n:4n$$, where $$n$$ is a natural number.
Eg = $$3(13):4(13)=39:52$$
Similarly, $$3n=51$$
=> $$n=\frac{51}{3}=17$$
Thus, missing number = $$4\times17=68$$
=> Ans - (C)
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