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Sue's checking account, maintenace charges DS question-Weird

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Sue's checking account, maintenace charges DS question-Weird

by tj123 » Mon May 18, 2009 6:57 pm
A certain bank charges a maintenace fee on a standard checking account each month that the balance falls below $1000.00 at any time during the month. Did the bank charge a maintenace fee on Sue's standard checking account?

1) at the beginning of last month, Sue's account balance wa $1500.00

2) During last month, a total of $2000.00 was widthdrawn.

Answer is E

IMO Answer is C

Is this a mistake on the test makers?
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by cramya » Mon May 18, 2009 9:12 pm
Tj,

Please provide ur explanation for C so that we could help u better.


[spoiler]Its E since we have no info to say how much she deposited and if the balance remained > = 1000. All we know is she should have put atleast 500 so that she could withdraw 2000 with a beginning balance of 1500[/spoiler]


Hope this helps!

Regards,
CR
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by tj123 » Tue May 19, 2009 8:55 pm
1) tell us that she had $1500.00 dollars to start with.

2) tell us that she withdrew $2000.00 dollars over the month

Together it tell us right away that she has a negative balance of $500.00, which means she would have been charged a fee.

why do we need to bother about knowing about the deposits?
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by raleigh » Tue May 19, 2009 9:21 pm
(1) and (2) together are not sufficient. Suppose she did make no other deposits for the rest of the month. She would have been charged a fee as you pointed out.

Consider the case where on the first day of the month she deposits $5000. Then there is no charge.

So (1) and (2) together is not sufficient to determine whether or not her account will be charged a fee. The answer is E.
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by lunarpower » Wed May 20, 2009 3:38 am
raleigh wrote:(1) and (2) together are not sufficient. Suppose she did make no other deposits for the rest of the month. She would have been charged a fee as you pointed out.

Consider the case where on the first day of the month she deposits $5000. Then there is no charge.

So (1) and (2) together is not sufficient to determine whether or not her account will be charged a fee. The answer is E.
yes.

more simply, we don't know whether sue has made any deposits during the month in question.
you can't assume that she has made $0 in deposits.

in fact, i think the amounts in question are meant to "clue you in" a bit: your conclusion of a negative $500 balance doesn't make a lot of sense, so that should get you thinking about other factors (such as deposits) that could legitimize the possibility of withdrawing $2000 in a month in which the initial balance was $1500.
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