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Query in the Gmat prep now Geometry video

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by prernamalhotra » Fri May 09, 2014 9:44 pm
If AE=EC, what is the length of AB? (diagram attached)

1) AC =10
2) X=30

The video mentions that since both the statements force AB to have only one length the two statements are sufficient.

Since the question asks what is the length, shouldn't the result be dependent on which statement results in a value/ if both statements result in a value.

Thank you,
Prerna
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Source: — Data Sufficiency |

by mathrupradeep » Fri May 09, 2014 11:58 pm
Is the answer is C ?
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by mathrupradeep » Fri May 09, 2014 11:59 pm
Is the answer is C ?
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by Brent@GMATPrepNow » Sat May 10, 2014 2:13 am
prernamalhotra wrote:If AE=EC, what is the length of AB? (diagram attached)

1) AC =10
2) X=30

The video mentions that since both the statements force AB to have only one length the two statements are sufficient.

Since the question asks what is the length, shouldn't the result be dependent on which statement results in a value/ if both statements result in a value.

Thank you,
Prerna
The video that Prerna refers to can be found here: https://www.gmatprepnow.com/module/gmat- ... cy?id=1103 The question begins at the 3-minute mark.

The correct answer is, indeed, C

I'm not sure what you are asking above (in green), Prerna.
The statements COMBINED are sufficient to answer the target question. However, each statement ALONE is not sufficient.

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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