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

Redeem

GMATPrep Bookstore

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 148
Joined: Wed Dec 10, 2008 5:13 pm
Location: SF, CA
Thanked: 12 times

GMATPrep Bookstore

by lilu » Wed May 06, 2009 8:31 pm
I would appreciate an explanation :D
I'll post the OA after a few responses

Sorry, I had trouble attaching the question.

Here it is typed:
A bookstore that sells books sells each of its paperbacks for a certain price and each of its hardcover books for a certain price. If Joe, Maria, and Paul bought books in this store, how much did Maria for 1 paperback and hardcover book?

1. Joe bought 2 paperback and 3 hardcover books for $12.50
2. Paul bought 4 paperback and 6 hardcover books for $25.00
The more you look, the more you see.
Top
Source: — Data Sufficiency |
User avatar
Legendary Member
Posts: 682
Joined: Fri Jan 16, 2009 2:40 am
Thanked: 32 times
Followed by:1 members

Re: GMATPrep Bookstore

by Vemuri » Wed May 06, 2009 11:48 pm
IMO E.

Statement 1: Can be represented in an equation as 2P+3H=12.5. 2 variables & 1 equation, so not sufficient

Statement 2: Can be represented in an equation as 4P+6H=25 ==> 2P+3H=12.5. 2 variables & 1 equation, so not sufficient

Together also the statements are not sufficient because they both represent the same equation.
Top
Master | Next Rank: 500 Posts
Posts: 116
Joined: Tue Dec 09, 2008 12:30 pm
Thanked: 3 times
Followed by:2 members
GMAT Score:670

by Vitalina » Thu May 07, 2009 3:05 am
Definitely E :D
Previous explanation by Vemuri is very good )
Top
Master | Next Rank: 500 Posts
Posts: 148
Joined: Wed Dec 10, 2008 5:13 pm
Location: SF, CA
Thanked: 12 times

Re: GMATPrep Bookstore

by lilu » Thu May 07, 2009 6:45 am
Vemuri wrote:IMO E.

Statement 1: Can be represented in an equation as 2P+3H=12.5. 2 variables & 1 equation, so not sufficient

Statement 2: Can be represented in an equation as 4P+6H=25 ==> 2P+3H=12.5. 2 variables & 1 equation, so not sufficient

Together also the statements are not sufficient because they both represent the same equation.
Thank you, Vemuri!
I made such a silly mistake. I thought that we'd be able to set up a second equation P+H=5 and find out the values of P and H, but I did read the question carefully: we need to find the price of P and H books,not the amounts.
The more you look, the more you see.
Top
Post new topic Post Reply
• Page 1 of 1