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:

On jane's credit card account, the average daily balance for [#permalink]

Show Tags

14 Jul 2008, 08:48

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

I got this one wrong twice..can someone please give a detailed explanation...

On jane's credit card account, the average daily balance for a 30-day billing cycle is the average of the daily balances at the end of each of the 30 day. At the beginning of a certain 30-day billing cycle, Jane's credit card account had a balance of $600. Jane made a payment of $300 on the account during the billing cycle. If no other amounts were added to or subtracted from the account during the billing cycle, what was the average daily balance on Jane's account for the billing cycle?

(1) Jane's payment was credited on the 21st day of the billing cycle. (2) Average daily balance through the 25th day of the billing cycle was $450.

2) 540*25 = 13.500 you have to arrive to that in 25 steps, each one either 600 or 300. 600*20 + 300*5 = 13500, means the payments was made in the 21st day, suff

see my problem is what if $300 that she deposited what if it gets credited in multiple chunks..i.e say $100 on 21st day, $50 on 22nd day..$200 on 23 day..

i mean there is no mention that all the money gets credited immediatly??

it does say 1 payment in the question stem. but i see your point, in the real world, when you make a large deposite by check ($5000+), the bank will credit you some fund immediately, but they will withhold the remainder amount until the check clear. I don't know if this applies to payments or not, but if you pay electronically with a sufficient balance, the whole amount clears the same day.

well..i think this question is making you assume that it will be cleared in 1 payment...somehow i cannot make that leap of faith unless its catagorically mentioned..

i am reading too much into this??

gmatnub wrote:

it does say 1 payment in the question stem. but i see your point, in the real world, when you make a large deposite by check ($5000+), the bank will credit you some fund immediately, but they will withhold the remainder amount until the check clear. I don't know if this applies to payments or not, but if you pay electronically with a sufficient balance, the whole amount clears the same day.

State 1: We know it was credited on the 21st day...thats when it hit the balance. everyday after that is 300. we can find the 30 day avg.

State 2: we know the sum of day 1 --> 25th...since the avg is $540 we know the payment was made in there someplace...so the remaining days are $300 balance. We can find avg of the 30 days.

Originally it says her balance is $600, but it doesn't say whether it is her monthly or daily balance. In my head, I was thinking, that's a large daily balance to have on her credit card bill, so I thought she would initially have to pay off $600, and somewhere in the month she made a payment of 300, which was on the 21st day.