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3 Answers

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23 : 34  ::  47 :  x

Compare 23 and 47 both are prime so there has to be a connection going with that analogy we have,  (23*2) + 1 = 47 
Similarly 34 and x are related so x = (34*2)+1 = 69 


So OPTION A might be the answer according to me.

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Answer Should be D) 62

We can apply the following logic:
5^2 - 2 : 6^2 - 2 = 23:34

Similarly:
7^2 - 2 : 8^2 - 2 =  47:62

So option D) is correct

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