bablu1234 wrote:
Thanks for pointing this out.
OG#15 explanation is lengthy and asking user to count numbers between 701 and 999.
OG should hire Bunuel
.
I do search before posting however I missed for this one.
Thanks again.
Dear
bablu1234,
I'm happy to respond, my friend.
I believe you already have gotten an good explanation of this particular math question. Bunuel is indeed a gifted teacher.
I want to point out something to you about the
OG. The questions in the
OG are released GMAT question: these questions are among the most rigorously examined questions on the entire planet. They went through several rounds of testing before they ever were on the GMAT, and they generated buckets of data while they were on the GMAT. By the the time any questions gets released from the GMAT and into an
OG, it has a mountain of data behind its validity. By contrast, the explanations in the
OG are only written when the book needs to be published, and when GMAC introduce additional questions in a new edition, some poor grad student somewhere has to produce new explanations. It's not clear to me that these explanations go through any feedback process at all. Some of the explanations are good, and some are simply atrocious. A few say things that are blatantly wrong. Most experts here on GMAT Club can give much better explanations than those that appear in the
OG.
If the questions in the
OG are like the crown jewels of Britain, the
OG explanations are like costume jewelry one buys at a discount. If the questions in the
OG are a world-class meal specially prepared by the finest chefs on earth, the
OG explanations are like fast food. The difference in quality is mindboggling, and many students are entirely unaware of this difference because they are all bound in the same book with the same font.
Don't be fooled. Rely on the questions in the
OG, but don't rely on the explanations. Get higher quality explanations here on GMAT Club, from Bunuel, Souvik, myself, and others.
Does all this make sense?
Mike
_________________
Mike McGarry
Magoosh Test PrepEducation is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)