GMAT Math : Geometry
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Example Questions
Example Question #4 : Dsq: Calculating The Midpoint Of A Line Segment
Find the midpoint of segment 
I) The 
II) 
Neither statement is sufficient to answer the question. More information is needed.
Either statement alone is sufficient to answer the question.
Both statements together are needed to answer the question.
Statement I is sufficient to answer the question, but Statement II is not sufficient to answer the question.
Statement II is sufficient to answer the question, but Statement I is not sufficient to answer the question.
Statement I is sufficient to answer the question, but Statement II is not sufficient to answer the question.
To find the midpoint, we need to know both endpoints.
I) Gives us the means to find out other endpoint.
II) Gives us the length of PS, but we are not given any hint as to its orientation.Thus, we cannot find the other endpoint and we cannot find the midpoint.
Thus, Statement I alone is sufficient to answer the question.
Example Question #5 : Dsq: Calculating The Midpoint Of A Line Segment
Find the midpoint of segment 
I) Endpoint 
II) Endpoint 
Either statement is sufficient to answer the question.
Statement II is sufficient to answer the question, but statement I is not sufficient to answer the question.
Statement I is sufficient to answer the question, but statement II is not sufficient to answer the question.
Both statements are needed to answer the question.
Neither statement is sufficient to answer the question. More information is needed.
Both statements are needed to answer the question.
To find the midpoint of a segment we need both endpoints
I) Gives us one endpoint.
II) Gives us clues to find the other endpoint.
Use midpoint formula
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