1000 DS, Test 13,

Expert replies

jaheer: Junior | Next Rank: 30 Posts; Posts: 11; Joined: Thu Feb 15, 2007 1:50 am

by jaheer » Sun Mar 18, 2007 1:54 am

Someone Help me with this.

13. Larry saves x dollars per month. Will Larry’s total savings one year from now exceed his present savings by at least $500 ? (Assume that there is no interest.)

(1) In 6 months Larry's total savings will be $900.
(2) In 3 months Larry's total savings will exceed his present savings by $150.

Thanks

Like this post

Source: Beat The GMAT — Data Sufficiency | Sun Mar 18, 2007 1:54 am

jayhawk2001: Community Manager; Posts: 789; Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member; Location: Silicon valley, California; Thanked: 30 times

by jayhawk2001 » Sun Mar 18, 2007 8:29 am

For this question, it is sufficient if we know x since 12*x will be the increment
from the present savings.

Let i be the present savings

1 - insufficient. i + 6x = 900. We don't know i and/or x

2 - sufficient. (i + 3x - i) = 150. So x = 50 and so 12x = 600 which is > 500

So, is the answer B ?

Like this post

keepsmilinyaar: Senior | Next Rank: 100 Posts; Posts: 43; Joined: Sun Feb 18, 2007 5:59 am

by keepsmilinyaar » Wed Apr 04, 2007 7:12 am

Larry saves x dollars a month. .
Larry’s total savings one year from now would be 12x dollars in a year.

So 12x should be greater than 500.
So to find an answer we only need to know the value of x.

(1) In 6 months Larry's total savings will be $900.
6x = 900
x can be found out.

(2) In 3 months Larry's total savings will exceed his present savings by $150.
3x = 150
x can be found out..

I think we can find the answers from both the options.
I hope I am correct.

Like this post

guynoor: Senior | Next Rank: 100 Posts; Posts: 59; Joined: Sat Feb 10, 2007 10:03 pm; Thanked: 1 times

by guynoor » Wed Apr 04, 2007 8:09 am

keepsmilinyaar wrote:Larry saves x dollars a month. .
Larry’s total savings one year from now would be 12x dollars in a year.

So 12x should be greater than 500.
So to find an answer we only need to know the value of x.

(1) In 6 months Larry's total savings will be $900.
6x = 900
x can be found out.

(2) In 3 months Larry's total savings will exceed his present savings by $150.
3x = 150
x can be found out..

I think we can find the answers from both the options.
I hope I am correct.

Thats true answer can be found from both 1 and 2 so both are alone sufficient.

Like this post

guynoor: Senior | Next Rank: 100 Posts; Posts: 59; Joined: Sat Feb 10, 2007 10:03 pm; Thanked: 1 times

by guynoor » Wed Apr 04, 2007 8:11 am

guynoor wrote:
keepsmilinyaar wrote:Larry saves x dollars a month. .
Larry’s total savings one year from now would be 12x dollars in a year.

So 12x should be greater than 500.
So to find an answer we only need to know the value of x.

(1) In 6 months Larry's total savings will be $900.
6x = 900
x can be found out.

(2) In 3 months Larry's total savings will exceed his present savings by $150.
3x = 150
x can be found out..

I think we can find the answers from both the options.
I hope I am correct.
Thats true answer can be found from both 1 and 2 so both are alone sufficient though i am not sure as to the logic you use. I solved it in a different way.

Like this post

jrdeshpande: Newbie | Next Rank: 10 Posts; Posts: 2; Joined: Wed Feb 03, 2010 2:42 pm

by jrdeshpande » Mon Jul 18, 2011 8:49 pm

My appologies for starting the old chain back but I have recently started solving all the DS questions from this forum.

If we go with this logic X comes to 150 in (1) and 50 in (2) which is contradictory. So this is not correct.

We don't know how much Larry's initial saving is and so need to calculate considering his initial saving as 'i'. The correct answer in B.

Like this post

amit2k9: Master | Next Rank: 500 Posts; Posts: 461; Joined: Tue May 10, 2011 9:09 amFollowed by: 3 members; Location: pune; Thanked: 36 times

by amit2k9 » Mon Jul 18, 2011 11:39 pm

B is sufficient as

p+3x - p = 150 giving x = 50 and p = 0.

For Understanding Sustainability,Green Businesses and Social Entrepreneurship visit -https://aamthoughts.blocked/
(Featured Best Green Site Worldwide-https://bloggers.com/green/popular/page2)

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