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Re: M21-05 [#permalink]
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pedrocaa wrote:
I really can't understand why the answer isn't D.
If the range(Highest - Lowest) is 2B, this means that the highest term of the set is a+b and the lowest is a-b.

If i know the highest and the lowest term of a 3 part set, i can know which one is the middle term, therefore, i know which term is the median, B-A. Even considering B=3 or B=0 this answer will work.

Can someone explain this to me?


This is a value DS question. When a DS question asks about the value of some variable, then the statement(s) is sufficient ONLY if you can get the single numerical value of this variable.

In a Yes/No Data Sufficiency questions, statement(s) is sufficient if the answer is “always yes” or “always no” while a statement(s) is insufficient if the answer is "sometimes yes" and "sometimes no".
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Re: M21-05 [#permalink]
+1 for A.
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Re: M21-05 [#permalink]
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Duplicate of M21-02. Unpublished....................
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Re: M21-05 [#permalink]
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