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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Beginning in January of last year, Carl made deposits of $12 [#permalink]

Show Tags

26 Oct 2009, 06:34

1

This post received KUDOS

3

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

55% (hard)

Question Stats:

68% (02:52) correct
32% (02:02) wrong based on 100 sessions

HideShow timer Statistics

Beginning in January of last year, Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50 from the account on the 15th of each of the remaining months of last year. There were no other transactions in the account last year. If the closing balance of Carl's account for May of last year was $2,600, what was the range of the monthly closing balances of Carl's account last year?

(1) Last year the closing balance of Carl's account for April was less than $2,625.

(2) Last year the closing balance of Carl's account for June was less than $2,675

Below is the question from OG, a real tough one. I am totally clueless on this one. Please help me out. Thanks in advance

Beginning in January of last year, Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50 from the account on the 15th of each of the remaining months of last year. There were no other transactions in the account last year. If the closing balance of Carl's account for May of last year was $2,600, what was the range of the monthly closing balances of Carl's account last year?

(1) Last year the closing balance of Carl's account for April was less than $2,625.

(2) Last year the closing balance of Carl's account for June was less than $2,675

To find the range we should know: A. Balance before he started depositing, initial balance = x (we know that there was initial balance because for may balance was 2600 and maximum amount he could deposited for this period is: 5 months*120=600). B. Till what month he deposited $120. C. From which month he started withdrawing $50.

(1) April balance< 2625 --> he deposited in May (Because if he didn't then April balance=2600+50=2650 and we know that in April balance was<2625). So for may balance=2600=x(initial balance)+5months*120 --> x+600=2600 --> x=2000. We know initial balance, but we still don't know: till what month he deposited $120 and from which month he started withdrawing $50 Not sufficient

(2) June balance < 2675 --> he didn't deposited in June --> he withdrawed in June (if he deposited, in June deposit would be May balance 2600+120=2720>2675) Not sufficient

(1)+(2) we know: Initial balance: x=2000 Till what month he deposited $120: till May From which month he started withdrawing $50: from June Sufficient C.
_________________

Re: A very tough, above 750 level-real question [#permalink]

Show Tags

28 Oct 2009, 02:28

IMO, this is not a very tough 750 lvl question. Bunuel showed the elaborate way of solving the problem. Since it is a DS question, you actually do not need to calculate that much either. From 1) We know that Carl deposited money in May (and thus in the previous months). However, we do not know how long he continued depositing. From 2) We know that he withdrew money in June, but it does not say from when he started withdrawing. Combining both, by subtracting 120 for each previous months from May and also subtracting 50 for the coming months we will get figures. From there we can find the range.

Re: A very tough, above 750 level-real question [#permalink]

Show Tags

28 Oct 2009, 21:26

I remember this Q from OG as well and think it is a tough one. Gave it up half way (after spending ~5 mins). Looks simple with Bunuel's explanation, but still I'm not sure if I'd be able to handle such a wordy problem in test conditions

Re: A very tough, above 750 level-real question [#permalink]

Show Tags

29 Oct 2009, 01:44

statement 1: ========== tells about the closing balance in April .Since May was higher than April,he must have deposited 120 in May.But no info about after May.Nt suff

statement 2: ========== Since June is less than May,he must have withdrawn in June.No info about months prior to May. Nt suff

combining both we get to know that he stopped the deposit in May and started the withdrawal in June.

I am having difficulty understanding this problem. Can someone help provide clarity for me. Thanks

161. Beginning in January of last year, Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50 from the account on the 15th of each of the remaining months of last year. There were no other transactions in the account last year. If the closing balance of Carl’s account for May of last year was $2,600, what was the range of the monthly closing balances of Carl’s account last year?

(1) Last year the closing balance of Carl’s account for April was less than $2,625.

(2) Last year the closing balance of Carl’s account for June was less than $2,675.

Re: A very tough, above 750 level-real question [#permalink]

Show Tags

25 Feb 2011, 23:40

From (1), if in April, (P + Deposit - Withdrawl) < 2625, and in May it was 2600, then there could have been only deposit till May as during withdrawl in May the total amount would be < 2600 (even for Max amount 2624.99)

Now, from (2) , For June < 2675, so there can be only withdrawl, no deposit as 2600 + 120 = 2720 > 2675 Not sufficient again. Hence, from June onwards only withdrawl and initial deposit is known, so answer is C
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

Re: A very tough, above 750 level-real question [#permalink]

Show Tags

06 Jul 2011, 01:54

1

This post received KUDOS

you have to find the range- if you know all months' closing balances you can find the range We know that balance at may end is 2600. now, on 15th may either a +120 happened or a -50 happened. That is at april end balance can be 2480 or 2650 april balance is told as less than 2625 -- cant be 2650 -- so a -50 didnt happen-- a +120 happened--for all preceding months =120 would have happened-- so all preceding months balance can be known- Statement 1 tells us balance from month of jan to may, but doesnt tell us anything about jun to dec- not sufficient to find range Now, if may end was 2600, on june 15 either a +120 or a -50 will happen. June balance at clsoing will be 2720 or 2550 Statement 2 says it was less than 2675. so it is not 2720, has to be 2550. that is a -50 happened in june. Now that -50 has started to happen, it will keep happening till end of dec. so by subtracting -50 repeatedly, we can find closing balance fro months of jun to dec. range can be found if both statements are used together hence C

Re: Beginning in January of last year, Carl made deposits of $12 [#permalink]

Show Tags

04 Feb 2014, 21:29

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.
_________________

Re: Beginning in January of last year, Carl made deposits of $12 [#permalink]

Show Tags

23 Apr 2015, 02:49

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.
_________________

There’s something in Pacific North West that you cannot find anywhere else. The atmosphere and scenic nature are next to none, with mountains on one side and ocean on...

This month I got selected by Stanford GSB to be included in “Best & Brightest, Class of 2017” by Poets & Quants. Besides feeling honored for being part of...

Joe Navarro is an ex FBI agent who was a founding member of the FBI’s Behavioural Analysis Program. He was a body language expert who he used his ability to successfully...