Gmat prep

Expert replies

sandranjeim: Newbie | Next Rank: 10 Posts; Posts: 8; Joined: Sun Apr 18, 2010 3:05 am; Thanked: 2 times

by sandranjeim » Sun Apr 18, 2010 3:25 am

The numbers x and y are not integers. The value of x is closest to which integers?

1) 4 is the integer that is closest to x + y

2) 1 is the integer that is closest to x - y

E

Like this post

Source: Beat The GMAT — Data Sufficiency | Sun Apr 18, 2010 3:25 am

eaakbari: Master | Next Rank: 500 Posts; Posts: 435; Joined: Mon Mar 15, 2010 6:15 amFollowed by: 1 member; Thanked: 32 times

by eaakbari » Sun Apr 18, 2010 3:58 am

(1)
Clearly Insuff as x and y can take wide range of values

(2)
Clearly Insuff as x and y can take wide range of values

Combined

x+y = 4
x-y=1

x=2.5

It is impossible to determine whether x is closer to 2 or to 3. as all the values are to closest integer.

For eg x = 2.4 and y = 1.9 satisfies all the equations but is closest to 2
But x = 2.5 and y = 1.9 satisfies all the equations too but is closer to 3.

Hence Insuff answer E

It indeed is a good question.

Whether you think you can or can't, you're right.
- Henry Ford

Like this post

kstv: Legendary Member; Posts: 610; Joined: Fri Jan 15, 2010 12:33 amFollowed by: 2 members; Thanked: 47 times

by kstv » Sun Apr 18, 2010 7:31 am

1 ) 3.5 < x + y < 4.5
2 ) 0.5< x - y < 1.5

4 < 2x < 6
2< x < 3

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