Data Sufficiency (DS) | Re: If n and k are positive integers, is (n+k)^1/2>2n^1/2?

Hi Bunuel,

I couldn't understand the 2nd part.

The objective is the check if k>3n (after simplification).
From option 2 we find K>2n , so it's also sufficient to answer that K is not greater than 3n.

Please explain.

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