143 Data Sufficiency Official Guide GMAT 13th Edition - Official Guide GMAT 13 Video Explanations

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Reader Comments (3)

Omg... that was a great explanation! I was so confused. Also great choice of words and comforting voice for such a stressful test!

November 13, 2012 |

RobertDeNiro

Yikes. If a nasty problem such as this one takes over 10 minutes, I doubt that many test takers would actually try to solve it. Is there an easier way to short-cut through the logic directly and solve it in under 4 minutes?

December 23, 2012 |

Sameer Khandelwal

Sameer,

This is the only problem on this site that I am not very happy with my 10 minute long explanation. I have to revisit this problem and come up with a good way to tackle it in a reasonably quick way.

Dabral

December 24, 2012 |

GMATQuantum

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