Find all School-related info fast with the new School-Specific MBA Forum

It is currently 02 Aug 2015, 02:57
GMAT Club Tests

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

A parent established a college fund for his daughter. Each year the

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Joined: 19 Mar 2007
Posts: 524
Followers: 3

Kudos [?]: 9 [0], given: 0

A parent established a college fund for his daughter. Each year the [#permalink] New post 09 Jul 2007, 04:02
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

62% (02:20) correct 38% (00:24) wrong based on 13 sessions
A parent established a college fund for his daughter. Each year the parent made a contribution to the fund, and each year he increased his contribution by a constant amount. If he made a contribution of $800 in the first year, by what amount did the parent increase his contribution to the fund each year?

(1) The parent's contribution to the fund in the 18th year was $7600.
(2) The parent's contribution to the fund in the 7th year was twice what it was in the 3rd year.
[Reveal] Spoiler: OA

Last edited by Bunuel on 22 Jul 2015, 01:24, edited 2 times in total.
Renamed the topic, edited the question and added the OA.
Manager
Manager
User avatar
Joined: 07 Feb 2007
Posts: 212
Followers: 2

Kudos [?]: 9 [0], given: 0

Re: A parent established a college fund for his daughter. Each year the [#permalink] New post 09 Jul 2007, 04:53
nick_sun wrote:
A parent established a college fund for his daughter. Each year the parent made a contribution to the fund, and each year he increased his contribution by a constant amount. If he made a contribution of $800 in the first year, by what amount did the parent increase his contribution to the fund each year?

(1) The parent’s contribution to the fund in the 18th year was $7600.
(2) The parent’s contribution to the fund in the 7th year was twice what it was in the 3rd year.

d


Assuming the C(m) is the contribution according to month m, and the increase amount per month is k. where C(m)=800+(k-1)*m.
(1) C(18)=800+(18-1)*m=7600; Sufficient;
(2) C(7)/C(3)=(800+(7-1)*m)/(800+(3-1)*m)=2; Sufficient.
Therefore, the answer is D.
Senior Manager
Senior Manager
avatar
Joined: 04 Jun 2007
Posts: 346
Followers: 1

Kudos [?]: 18 [0], given: 0

Re: A parent established a college fund for his daughter. Each year the [#permalink] New post 09 Jul 2007, 05:40
1
This post was
BOOKMARKED
wudy wrote:
nick_sun wrote:
A parent established a college fund for his daughter. Each year the parent made a contribution to the fund, and each year he increased his contribution by a constant amount. If he made a contribution of $800 in the first year, by what amount did the parent increase his contribution to the fund each year?

(1) The parent’s contribution to the fund in the 18th year was $7600.
(2) The parent’s contribution to the fund in the 7th year was twice what it was in the 3rd year.

d


Assuming the C(m) is the contribution according to month m, and the increase amount per month is k. where C(m)=800+(k-1)*m.
(1) C(18)=800+(18-1)*m=7600; Sufficient;
(2) C(7)/C(3)=(800+(7-1)*m)/(800+(3-1)*m)=2; Sufficient.
Therefore, the answer is D.


Agree with D. This is an arithmetic progression problem.
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 5711
Followers: 323

Kudos [?]: 63 [0], given: 0

Premium Member
Re: A parent established a college fund for his daughter. Each year the [#permalink] New post 22 Jul 2015, 01:03
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: A parent established a college fund for his daughter. Each year the   [#permalink] 22 Jul 2015, 01:03
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic Ann will raise fund from n friends in condition that each n friends.. h31337u 1 09 Nov 2014, 06:25
4 Experts publish their posts in the topic Each of 30 parents chose one of five days from Monday throug banksy 4 14 Mar 2011, 15:31
6 Experts publish their posts in the topic Each person attending a fund-raising party for a certain clu udaymathapati 13 23 Sep 2010, 11:15
Each person attending a fund raising party for a certain EnterMatrix 2 10 Jul 2010, 00:25
7 Experts publish their posts in the topic Each person attending a fund-raising party for a certain clu tarek99 8 11 Dec 2007, 14:48
Display posts from previous: Sort by

A parent established a college fund for his daughter. Each year the

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.