Is x+y>2z ? (1) \triangle A B C is equilateral. (2) A D ⟂ B C

Correct Answer is : Statement (1), BY ITSELF, will suffice to solve the problem, but NOT statement (2) by itself.

Statement (1), BY ITSELF, will suffice to solve the problem, but NOT statement (2) by itself.

Statement (2), BY ITSELF, will suffice to solve the problem, but NOT statement (1) by itself.

The problem can be solved using statement (1) and statement (2) TOGETHER, but not ONLY statement (1) or statement (2).

The problem can be solved using EITHER statement (1) only or statement (2) only.

The problem CANNOT be solved using statement (1) and statement (2) TOGETHER.

GMAT Quantitative Reasoning Practice Test 6

Question : 9 of 100

Marks: +1, -0

x+y>2z ?

(1)

△ A B C

is equilateral.
(2)

A D ⟂ B C

Statement (1), BY ITSELF, will suffice to solve the problem, but NOT statement (2) by itself.
Statement (2), BY ITSELF, will suffice to solve the problem, but NOT statement (1) by itself.
The problem can be solved using statement (1) and statement (2) TOGETHER, but not ONLY statement (1) or statement (2).
The problem can be solved using EITHER statement (1) only or statement (2) only.
The problem CANNOT be solved using statement (1) and statement (2) TOGETHER.

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