DS Groups

1. DS Groups: From a class, 180 students take either math or science. 120 take math and 100 take science. How many took math but not science?

(A) 50 took science but not math.

(B) 75 took only science.

Quote

eshank: Newbie | Next Rank: 10 Posts; Posts: 1; Joined: Thu Aug 27, 2009 1:42 pm

by eshank » Sat Dec 12, 2009 2:51 am

qazpt wrote:1. DS Groups: From a class, 180 students take either math or science. 120 take math and 100 take science. How many took math but not science?

(A) 50 took science but not math.

(B) 75 took only science.

it can be solved the answer is D, however the answer from the statements is different..

Quote

adamsmith2009: Senior | Next Rank: 100 Posts; Posts: 36; Joined: Fri Mar 27, 2009 6:53 pm

by adamsmith2009 » Mon Dec 14, 2009 6:57 am

I don't understand how it could be solved with either. Can someone explain. Thanks.

Quote

Post new topic Post Reply

• Page 1 of 1

5/5

5 Star (477 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