confusing

Expert replies

Previous Topic Next Topic

Atult718: Senior | Next Rank: 100 Posts; Posts: 38; Joined: Wed Mar 14, 2007 1:17 am

by Atult718 » Mon Aug 06, 2007 5:35 am

Hey guys,

Need help with this.

Attachments

Like this post

Source: Beat The GMAT — Problem Solving | Mon Aug 06, 2007 5:35 am

mindruna: Junior | Next Rank: 30 Posts; Posts: 27; Joined: Mon Mar 19, 2007 6:23 pm; Location: Cambridge, MA

by mindruna » Mon Aug 06, 2007 5:43 am

This is tricky...

Because the answers have boxes around them, you have to pick the answer that adheres to the rule stated at the beginning. The answer is 81, but it's really [27] because 27 is odd and therefore, you have to multiply by 3 to get 81.

Like this post

beny: Master | Next Rank: 500 Posts; Posts: 214; Joined: Fri Jul 20, 2007 1:35 am; Thanked: 3 times

by beny » Mon Aug 06, 2007 5:11 pm

Interesting... I had this same exact question, except the answers didn't have boxes around them. I got the question wrong and couldn't figure out why... I think others have had the same experience with this problem.

Like this post

smushkas: Senior | Next Rank: 100 Posts; Posts: 49; Joined: Sun Jul 01, 2007 5:56 pm; Thanked: 3 times

by smushkas » Tue Aug 07, 2007 4:03 am

I don't know guys how you approached to this question, but what i think is that boxes just mean functions. Thus, when m is even --> [m] = 3m, but when odd --> m = (1/2)*m. Since, 9 and 6 are odd number, just multiply by (1/2) or divide by 2. At the end we have: ( 9 * 6 ) * ( 1/2) = 27.

Like this post

karthick451: Junior | Next Rank: 30 Posts; Posts: 24; Joined: Mon Jul 02, 2007 6:22 am

by karthick451 » Tue Aug 07, 2007 4:33 am

here is my take the write answer is D.

box(m) = (3m) if m is odd
= (1/2)m if m is even

box(9) * box(6) = (9*3) * (6/2)
= 81

then looking at the answers

box(81) = 81*3 = 27
box(54) = 54/2
box(36) = 36/2
only box(27) = 27*3 = 81
box(18) = 18/2

hence the answer is D

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

559 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