positive integers

Expert replies

grandh01: Master | Next Rank: 500 Posts; Posts: 265; Joined: Tue Jul 03, 2012 11:04 pmFollowed by: 6 members

by grandh01 » Mon Aug 20, 2012 2:39 pm

The product of the first twelve
positive integers is divisible by all of
the following EXCEPT
(A) 210
(B) 88
(C) 75
(D) 60
(E) 34

OA is E

Like this post

Source: Beat The GMAT — Problem Solving | Mon Aug 20, 2012 2:39 pm

theCEO: Master | Next Rank: 500 Posts; Posts: 363; Joined: Sun Oct 17, 2010 3:24 pmFollowed by: 3 members; Thanked: 115 times

by theCEO » Mon Aug 20, 2012 4:07 pm

grandh01 wrote:The product of the first twelve
positive integers is divisible by all of
the following EXCEPT
(A) 210
(B) 88
(C) 75
(D) 60
(E) 34

OA is E

Break down the answer choices into factors less than 12: if there is a prime factor over then then this is the answer

a) 210 = 10 * 3 * 7 -- not sufficient
b) 88 = 11 * 8 -- not sufficient
c) 75 = 5 * 5 * 3 -- not sufficient
d) 60 = 6 x 10 --- not sufficient
e) 34 = 2 x 17 ----sufficient

answer = e

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review