BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

DS pls explain

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 61
Joined: Fri Jun 06, 2008 5:58 am
Thanked: 1 times

DS pls explain

by moonlite » Thu Oct 02, 2008 1:05 pm
From May 1 to May 30 in the same year, the balance in a checking account increased.
What was the balance in the checking account on May 30?

(1) If, during this period of time, the increase in the balance in the checking
account had been 12 percent, then the balance in the account on May 30 would
have been $504
(2) During this period of time, the increase in the balance in the checking account
was 8 percent.


OA is A

The question is asking for an amount so don't we need both the statements? Pls explain. Thanks.
Top
Source: — Data Sufficiency |
User avatar
Master | Next Rank: 500 Posts
Posts: 316
Joined: Mon Sep 22, 2008 12:04 am
Thanked: 36 times
Followed by:1 members

Re: DS pls explain

by Morgoth » Thu Oct 02, 2008 1:20 pm
moonlite wrote:From May 1 to May 30 in the same year, the balance in a checking account increased.
What was the balance in the checking account on May 30?

(1) If, during this period of time, the increase in the balance in the checking
account had been 12 percent, then the balance in the account on May 30 would
have been $504
(2) During this period of time, the increase in the balance in the checking account
was 8 percent.


OA is A
Statement (1)

let the initial balance be x

12% increase = 1.12x
1.12x = 504

You can solve for x.

but the question is "the balance in a checking account increased.
What was the balance in the checking account on May 30"

now we can only find the initial amount not the "increase"

Statement (2) this one is clearly insufficient.

Combining (1) & (2) we get the answer.

I think the answer should be C not A.

Anybody knows what am I missing ?
Top
Senior | Next Rank: 100 Posts
Posts: 61
Joined: Fri Jun 06, 2008 5:58 am
Thanked: 1 times

by moonlite » Thu Oct 02, 2008 2:03 pm
That's what i thought too.. answer should be C. Not sure what i'm missing or if the OA is wrong.
Top
Master | Next Rank: 500 Posts
Posts: 139
Joined: Sun Nov 09, 2008 12:04 am
Thanked: 3 times
GMAT Score:620

by Rashmi1804 » Fri Mar 20, 2009 11:55 am
My pick is C too...

for the same approach .....i think the OA is wrong...

anybody who got the answer A ??
Top
Master | Next Rank: 500 Posts
Posts: 168
Joined: Thu Nov 13, 2008 4:34 am
Location: Pittsburgh
Thanked: 9 times

by Tryingmybest » Fri Mar 20, 2009 12:18 pm
one more Vote for C
Top
Master | Next Rank: 500 Posts
Posts: 148
Joined: Wed Dec 10, 2008 5:13 pm
Location: SF, CA
Thanked: 12 times

by lilu » Fri Mar 20, 2009 2:34 pm
I also vote for C
The first statement gives principal and the second statement gives us rate, so we need both to find out the end balance.
Top
Newbie | Next Rank: 10 Posts
Posts: 1
Joined: Sat Mar 07, 2009 9:56 am

by nieves » Sat Apr 11, 2009 4:17 am
I had the same doubt. It could not be a. There is not enough info.

Sign me up for c!
Top
Legendary Member
Posts: 621
Joined: Wed Apr 09, 2008 7:13 pm
Thanked: 33 times
Followed by:4 members

by vittalgmat » Sun Apr 12, 2009 12:56 am
C for me as well
The problem is not worded well!
Top
Master | Next Rank: 500 Posts
Posts: 199
Joined: Sat Oct 24, 2009 4:43 pm
Thanked: 22 times
GMAT Score:710

by palvarez » Sun Oct 25, 2009 9:07 am
The problem is correctly worded. The problem lies with those who read the question.

(1) states a past counter factual. The question is about past-factual.
Top
Post new topic Post Reply
• Page 1 of 1