ps2

Expert replies

Previous Topic Next Topic

wwallace1: Junior | Next Rank: 30 Posts; Posts: 12; Joined: Tue Mar 25, 2008 5:15 pm

by wwallace1 » Fri Jul 04, 2008 11:11 pm

What am I doing wrong here? Can you please help me?

Attachments

Like this post

Source: Beat The GMAT — Problem Solving | Fri Jul 04, 2008 11:11 pm

Stuart@KaplanGMAT: GMAT Instructor; Posts: 3225; Joined: Tue Jan 08, 2008 2:40 pmFollowed by: 614 members; Location: Toronto; Thanked: 1710 times; GMAT Score:800

by Stuart@KaplanGMAT » Sat Jul 05, 2008 4:56 pm

If you'd tell us what you did, we could tell you what you did wrong!

Here's what we know about ponies - 1/2 ponies make a HUGE mess, so we can only have whole ones. In other words, the total number of ponies must be an integer.

5/6 of the ponies have horseshoes, so we know that the number of ponies must be a multiple of 6: elminate (b) and (c).

1/2 of the ponies with horsehoes are icelandic. Well, if only 5 ponies had horseshoes, then we'd have 2.5 icelandish ponies - no one wants to see that! In order to avoid a non-integer result, we must have started with at least 12 ponies (5/6 of 12 would gives us 10 with horseshoes; 1/2 of 10 would give us 5 icelandic).

Choose (a) 12.

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

Kaplan Exclusive: The Official Test Day Experience | Ready to Take a Free Practice Test? | Kaplan/Beat the GMAT Member Discount
BTG100 for $100 off a full course

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review