GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 20 Jan 2019, 03:18

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar

On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Intern
Intern
avatar
Joined: 14 May 2015
Posts: 4
Concentration: Healthcare
GMAT 1: 720 Q49 V40
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post Updated on: 16 Jun 2015, 07:56
1
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

86% (01:56) correct 14% (01:14) wrong based on 11 sessions

HideShow timer Statistics

On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, and 2 flaaps equal 3 fliips. How many floops are equal to 35 fliips?


No Answer Choices

Solution (from the MGMT SG book):

35 fliips x 2 flaaps/3 fliips x 4 fleeps/7 flaaps x 3 floops/5 fleeps = 8 floops


I understand their solution but am puzzled as to why my 1st method brings up the completely wrong answer



My approach was such:

Given:

3 Floops = 5 Fleeps Eq. A
4 Fleeps = 7 Flaaps Eq. B
2 Flaaps = 3 Fliips Eq. C

Find:

X Floops = 35 Fliips

Approach:

Eq. C x 7:
14 Flaaps = 35 Fliips

Eq. B x 2:
14 Flaaps = 8 Fleeps

Eq. A x 8/5:
8/5*3 Floops = 8 Fleeps


Combine your new equations

35 Fliips = 14 Flaaps = 8 Fleeps = 8/5*3 Floops
Thus
35 Fliips = 24/5 Floops?

Originally posted by Dr3xus on 16 Jun 2015, 05:15.
Last edited by Bunuel on 16 Jun 2015, 07:56, edited 1 time in total.
Edited the question.
CEO
CEO
User avatar
P
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2726
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
Reviews Badge
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 16 Jun 2015, 06:30
1
Dr3xus wrote:
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, and 2 flaaps equal 3 fliips. How many floops are equal to 35 fliips?


No Answer Choices
Solution (from the MGMT SG book):
35 fliips x 2 flaaps/3 fliips x 4 fleeps/7 flaaps x 3 floops/5 fleeps = 8 floops


I understand their solution but am puzzled as to why my 1st method brings up the completely wrong answer



My approach was such:

Given:

3 Floops = 5 Fleeps Eq. A
4 Fleeps = 7 Flaaps Eq. B
2 Flaaps = 3 Fliips Eq. C

Find:

X Floops = 35 Fliips

Approach:

Eq. C x 7:
14 Flaaps = 35 Fliips


Eq. B x 2:
14 Flaaps = 8 Fleeps

Eq. A x 8/5:
8/5*3 Floops = 8 Fleeps


Combine your new equations

35 Fliips = 14 Flaaps = 8 Fleeps = 8/5*3 Floops
Thus
35 Fliips = 24/5 Floops?


Hi,

Your Mistake is highlighted above

Eq. C x 7: Gives you
14 Flaaps = 21 Fliips

Suggestion: In the questions of Conversion, It's best to convert the the higher units into smaller units instead of converting the other way round

Lets Solve as per your method

Eq. C x (35/3): Gives you

70/3 Flaaps = 35 Fliips

Now, Eq. B x (10/3):
70/3 Flaaps = 40/3 Fleeps

Now, Eq. A x (8/3):
8 Floops = 40/3 Fleeps

i.e. 8 Floop should be the CORRECT answer
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 52295
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 16 Jun 2015, 07:57
Dr3xus wrote:
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, and 2 flaaps equal 3 fliips. How many floops are equal to 35 fliips?


No Answer Choices

Solution (from the MGMT SG book):

35 fliips x 2 flaaps/3 fliips x 4 fleeps/7 flaaps x 3 floops/5 fleeps = 8 floops


I understand their solution but am puzzled as to why my 1st method brings up the completely wrong answer



My approach was such:

Given:

3 Floops = 5 Fleeps Eq. A
4 Fleeps = 7 Flaaps Eq. B
2 Flaaps = 3 Fliips Eq. C

Find:

X Floops = 35 Fliips

Approach:

Eq. C x 7:
14 Flaaps = 35 Fliips

Eq. B x 2:
14 Flaaps = 8 Fleeps

Eq. A x 8/5:
8/5*3 Floops = 8 Fleeps


Combine your new equations

35 Fliips = 14 Flaaps = 8 Fleeps = 8/5*3 Floops
Thus
35 Fliips = 24/5 Floops?


Similar question to practice: if-1-tic-equals-3-tacs-and-2-tacs-equal-5-tocs-what-is-the-2249.html
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Intern
Intern
avatar
Joined: 14 May 2015
Posts: 4
Concentration: Healthcare
GMAT 1: 720 Q49 V40
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 16 Jun 2015, 10:06
Thank you, re-did the sum multiple times from scratch and for some reason I kept making the same calculation error.

Appreciate the tip too, it makes sense
Retired Moderator
avatar
Joined: 29 Apr 2015
Posts: 841
Location: Switzerland
Concentration: Economics, Finance
Schools: LBS MIF '19
WE: Asset Management (Investment Banking)
GMAT ToolKit User Premium Member
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 16 Jun 2015, 11:05
Dr3xus wrote:
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, and 2 flaaps equal 3 fliips. How many floops are equal to 35 fliips?


No Answer Choices

Solution (from the MGMT SG book):

35 fliips x 2 flaaps/3 fliips x 4 fleeps/7 flaaps x 3 floops/5 fleeps = 8 floops


I understand their solution but am puzzled as to why my 1st method brings up the completely wrong answer



My approach was such:

Given:

3 Floops = 5 Fleeps Eq. A
4 Fleeps = 7 Flaaps Eq. B
2 Flaaps = 3 Fliips Eq. C

Find:

X Floops = 35 Fliips

Approach:

Eq. C x 7:
14 Flaaps = 35 Fliips

Eq. B x 2:
14 Flaaps = 8 Fleeps

Eq. A x 8/5:
8/5*3 Floops = 8 Fleeps


Combine your new equations

35 Fliips = 14 Flaaps = 8 Fleeps = 8/5*3 Floops
Thus
35 Fliips = 24/5 Floops?


Solve like it was a Ratio Problem and multiply with the ratios:
35*2/3*4/7*3/5 = 8
_________________

Saving was yesterday, heat up the gmatclub.forum's sentiment by spending KUDOS!

PS Please send me PM if I do not respond to your question within 24 hours.

SVP
SVP
avatar
B
Joined: 06 Nov 2014
Posts: 1877
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 17 Jun 2015, 07:57
1
1
On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, and 2 flaaps equal 3 fliips. How many floops are equal to 35 fliips?
a = floops
b = fleeps
c = flaaps
d = fliips
x * a = 35 * d where "x" is the unknown number of floops

3a = 5b = > (3a/5) = b
4b = 7c = > 4 (3a/5) = 7c => (12a/35) = c
2c = 3d => 2 (12a/35) = 3d => (24a/35) = 3d cross multiply
(24/3) a = 35 d
8 * a=35 * d

8
Intern
Intern
avatar
B
Joined: 04 Sep 2018
Posts: 31
GPA: 3.33
CAT Tests
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,  [#permalink]

Show Tags

New post 31 Dec 2018, 05:58
I am a novice in GMAT Quant. Can someone please explain keeping in view my situation?

not getting at grasp with this at all :/
GMAT Club Bot
Re: On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps, &nbs [#permalink] 31 Dec 2018, 05:58
Display posts from previous: Sort by

On the planet Flarp, 3 floops equal 5 fleeps, 4 fleeps equal 7 flaaps,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.