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Register now and save up to $200 Available with Beat the GMAT members only code • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • 5-Day Free Trial 5-day free, full-access trial TTP Quant Available with Beat the GMAT members only code • Free Veritas GMAT Class Experience Lesson 1 Live Free Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code ## Can someone please give me the reasoning to this DS problem? This topic has 3 member replies daygoballa Junior | Next Rank: 30 Posts Joined 26 Feb 2009 Posted: 10 messages Test Date: June 2009 Target GMAT Score: 730 #### Can someone please give me the reasoning to this DS problem? Thu Mar 05, 2009 2:42 pm Here's the problem: - Of the 66 people in a certain auditorium, at most 6 people have birthdays in any one given month. Does at least one person in the auditorium have a birthday in January? (1) More of the people in the auditorium have birthdays in February than in March. (2) five of the people in the auditorium have birthdays in March. The answer is (D) Thank you for you help! Henry Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums! TedCornell Master | Next Rank: 500 Posts Joined 09 Mar 2009 Posted: 207 messages Followed by: 22 members Upvotes: 115 Test Date: March 9 2009 GMAT Score: 750 Top Reply Wed Mar 25, 2009 12:26 am On the GMAT, when you're told that 5 of the ppl have birth day in march that means exactly 5 of those people. There could be others with march birthdays, but those others cannot be among the people in the auditorium. Similarly, if you're told "John has$10" it means he has exactly $10; he cannot have$11 or $12. To make 6 march birthdays a possibility, the statement might've said "At least 5 of the pple have birthday in march" or "no fewer than 5 of the ppl" Thanked by: ranpman ranpman Newbie | Next Rank: 10 Posts Joined 01 Mar 2009 Posted: 1 messages Top Reply Mon Mar 23, 2009 5:58 pm cramya wrote: Take the easier of the 2 statements Stmt II 5 bday in March Remaining 61 and 11 months includinbg Jan left Atmost 6 can have a bday in any given month so there must be atleast 1 if not more having bday in Mar SUFF Stmt II More of the people in the auditorium have birthdays in February than in March Again to prove no one has a bday in jan try to maximize the 10 months which is 60 excluding March and Jan. Since March cant have 6 as it should be less than Feb at the max March can be 5. Still jan we have 1 bday. SUFF Choose D I agree that (1) is SUFFICIENT. However (2) states that "Five of the people in the auditorium have birthdays in March". (2) does not hay "ONLY five of the people in the auditorium have...". In that case, isn't it possible that March could have 6 birthdays? In which case, (2) is INSUFFICIENT. What am I missing? TedCornell Master | Next Rank: 500 Posts Joined 09 Mar 2009 Posted: 207 messages Followed by: 22 members Upvotes: 115 Test Date: March 9 2009 GMAT Score: 750 Wed Mar 25, 2009 12:26 am On the GMAT, when you're told that 5 of the ppl have birth day in march that means exactly 5 of those people. There could be others with march birthdays, but those others cannot be among the people in the auditorium. Similarly, if you're told "John has$10" it means he has exactly $10; he cannot have$11 or \$12.

To make 6 march birthdays a possibility, the statement might've said "At least 5 of the pple have birthday in march" or "no fewer than 5 of the ppl"

Thanked by: ranpman

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