OG 12 q 18

Expert replies

kullayappayenugula: Senior | Next Rank: 100 Posts; Posts: 49; Joined: Thu Dec 01, 2011 2:59 am; Thanked: 4 times

by kullayappayenugula » Mon Nov 05, 2012 1:26 am

What is the maximum number of rectangular blocks,
each with dimensions 12 centimeters by 6 centimeters
by 4 centimeters, that will fit inside rectangular Box X ?

(1) When Box X is filled with the blocks and rests on a certain side, there are 25 blocks in the
bottom layer.
(2) The inside dimensions of Box X are 60 centimeters by 30 centimeters by
20 centimeters.

How to make sure that maximum number of boxes fit in the given box? Do we have any condition which will ensure that we have maximum number of boxes in side the given bigger box?

Like this post

Source: Beat The GMAT — Data Sufficiency | Mon Nov 05, 2012 1:26 am

Jim@StratusPrep: MBA Admissions Consultant; Posts: 2279; Joined: Fri Nov 11, 2011 7:51 amFollowed by: 266 members; Location: New York; Thanked: 660 times; GMAT Score:770

by Jim@StratusPrep » Mon Nov 05, 2012 8:55 am

The main condition that you need is the size of the Box. When you have that you can calculate the max number. Only 2 gives you this.

B

GMAT Answers provides a world class adaptive learning platform.
-- Push button course navigation to simplify planning
-- Daily assignments to fit your exam timeline
-- Organized review that is tailored based on your abiility
-- 1,000s of unique GMAT questions
-- 100s of handwritten 'digital flip books' for OG questions
-- 100% Free Trial and less than $20 per month after.
-- Free GMAT Quantitative Review

Like this post

FLUID: Senior | Next Rank: 100 Posts; Posts: 39; Joined: Thu Nov 01, 2012 7:52 pm; Thanked: 7 times

by FLUID » Tue Nov 06, 2012 12:10 am

kullayappayenugula wrote:What is the maximum number of rectangular blocks,
each with dimensions 12 centimeters by 6 centimeters
by 4 centimeters, that will fit inside rectangular Box X ?

(1) When Box X is filled with the blocks and rests on a certain side, there are 25 blocks in the
bottom layer.
(2) The inside dimensions of Box X are 60 centimeters by 30 centimeters by
20 centimeters.

How to make sure that maximum number of boxes fit in the given box? Do we have any condition which will ensure that we have maximum number of boxes in side the given bigger box?

Maximum boxes = Total volume of the Box/ Volume of each block

Maximum boxes = 60 * 30 * 20/ 12 * 6* 4 = 125.

Option (B) gives inside dimension of the box.

Thanks,

"Take Risks in Your Life.
If you Win, you can Lead!
If you Loose, you can Guide!".

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

563 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (563 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