If each of the two lines p and q are parallel to line r , which of the

Question

If each of the two lines p and q are parallel to line r , which of the following MUST be correct?

I. Lines p, q and r lie in the same plane.
II. Lines p and q are parallel to one another.
III. Line p is the same as line q.

(A) Only I
(B) Only II
(C) Only III
(D) Only I and II
(E) Only II and III

GMATinsight · Answer

each of the two lines p and q are parallel to line r

I. Lines p, q and r lie in the same plane.  NOT NECESSARILY TRUE because p and r may be in one plane and q and r may be in other plane 
II. Lines p and q are parallel to one another.  MUST BE TRUE because p and r may be in one plane and q and r may be in other plane but a plane that concsists of p and q will make two lines parallel to each other 
III. Line p is the same as line q.  NOT NECESSARILY TRUE because p and r may be in one plane and q and r may be in other plane and p and q may not be overlapping lines

Answer: Option B

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If each of the two lines p and q are parallel to line r , which of the

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GMAT Problem Solving (PS) Questions

If each of the two lines p and q are parallel to line r , which of the

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