It is currently 24 Nov 2017, 04:46

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

Events & Promotions in June
Open Detailed Calendar

M08-34

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

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42356

Kudos [?]: 133196 [0], given: 12439

M08-34 [#permalink]

Show Tags

New post 16 Sep 2014, 00:38
Expert's post
10
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

76% (00:51) correct 24% (01:15) wrong based on 127 sessions

HideShow timer Statistics

Jules and Jim both invested certain amount of money in bond M for one year, which pays for 12% simple interest annually. If no other investment were made, then Jules initial investment in bond M was how many dollars more than Jim's investment in bond M.


(1) In one year Jules earned $24 more than Jim from bond M.

(2) If the interest were 20% then in one year Jules would have earned $40 more than Jim from bond M.
[Reveal] Spoiler: OA

_________________

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

Kudos [?]: 133196 [0], given: 12439

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42356

Kudos [?]: 133196 [0], given: 12439

Re M08-34 [#permalink]

Show Tags

New post 16 Sep 2014, 00:38
Expert's post
3
This post was
BOOKMARKED
Official Solution:


Question: \(x-y=?\)

(1) In one year Jules earned $24 more than Jim from bond M. \(0.12x-0.12y=24\). Reduce by 0.12: \(x-y=200\). Sufficient.

(2) If the interest were 20% then in one year Jules would have earned $40 more than Jim from bond M. Basically the same type of information as above: \(0.2x-0.2y=40\), reduce by 0.2: \(x-y=200\). Sufficient.

Important note: when two quantities are increased (decreased) by the same percent their difference also increase (decrease) by the same percent. For example if you increase 100 and 150 by 20% to 120 and 180 respectively, then their difference will also increase by the same 20% from 50 to 60.


Answer: D
_________________

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

Kudos [?]: 133196 [0], given: 12439

Manager
Manager
avatar
Joined: 31 Jul 2014
Posts: 147

Kudos [?]: 57 [0], given: 373

GMAT 1: 630 Q48 V29
Re: M08-34 [#permalink]

Show Tags

New post 21 Sep 2015, 01:54
Bunuel wrote:
Official Solution:


Question: \(x-y=?\)

(1) In one year Jules earned $24 more than Jim from bond M. \(0.12x-0.12y=24\). Reduce by 0.12: \(x-y=200\). Sufficient.

(2) If the interest were 20% then in one year Jules would have earned $40 more than Jim from bond M. Basically the same type of information as above: \(0.2x-0.2y=40\), reduce by 0.2: \(x-y=200\). Sufficient.

Important note: when two quantities are increased (decreased) by the same percent their difference also increase (decrease) by the same percent. For example if you increase 100 and 150 by 20% to 120 and 180 respectively, then their difference will also increase by the same 20% from 50 to 60.
Answer: D


Hi
Could you please confirm whether "earned" is just interest or orginal invested+interest?
Just in case if happened to problem solving.
In this DS it didnt matter though.

Kudos [?]: 57 [0], given: 373

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42356

Kudos [?]: 133196 [0], given: 12439

Re: M08-34 [#permalink]

Show Tags

New post 21 Sep 2015, 02:13
anupamadw wrote:
Bunuel wrote:
Official Solution:


Question: \(x-y=?\)

(1) In one year Jules earned $24 more than Jim from bond M. \(0.12x-0.12y=24\). Reduce by 0.12: \(x-y=200\). Sufficient.

(2) If the interest were 20% then in one year Jules would have earned $40 more than Jim from bond M. Basically the same type of information as above: \(0.2x-0.2y=40\), reduce by 0.2: \(x-y=200\). Sufficient.

Important note: when two quantities are increased (decreased) by the same percent their difference also increase (decrease) by the same percent. For example if you increase 100 and 150 by 20% to 120 and 180 respectively, then their difference will also increase by the same 20% from 50 to 60.
Answer: D


Hi
Could you please confirm whether "earned" is just interest or orginal invested+interest?
Just in case if happened to problem solving.
In this DS it didnt matter though.


Amount earned is just an interest earned.
_________________

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

Kudos [?]: 133196 [0], given: 12439

Intern
Intern
avatar
Joined: 03 Nov 2015
Posts: 1

Kudos [?]: [0], given: 0

Re: M08-34 [#permalink]

Show Tags

New post 19 Feb 2016, 06:26
Hi,
How is it x-y?
X+Y=M right ? Both invested amount x and Y in bond M.
Explain please. Thank you.

Kudos [?]: [0], given: 0

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42356

Kudos [?]: 133196 [0], given: 12439

Re: M08-34 [#permalink]

Show Tags

New post 19 Feb 2016, 08:37

Kudos [?]: 133196 [0], given: 12439

Manager
Manager
avatar
Joined: 03 Dec 2013
Posts: 72

Kudos [?]: 15 [0], given: 11

Location: United States (HI)
GMAT 1: 660 Q49 V30
GPA: 3.56
Re M08-34 [#permalink]

Show Tags

New post 22 Aug 2016, 14:08
I think this is a high-quality question and I agree with explanation.

Kudos [?]: 15 [0], given: 11

Intern
Intern
avatar
B
Joined: 22 Jan 2016
Posts: 8

Kudos [?]: [0], given: 0

Location: Thailand
Concentration: Finance, Statistics
GMAT 1: 640 Q46 V31
GMAT 2: 620 Q50 V25
GMAT 3: 650 Q50 V28
GPA: 2.89
WE: Accounting (Consulting)
Premium Member
Re: M08-34 [#permalink]

Show Tags

New post 05 Sep 2016, 09:30
I thought this question want me to compare the initial amount of inv of one person to investment which is not initial amount of another.

Kudos [?]: [0], given: 0

Intern
Intern
avatar
B
Joined: 02 Mar 2017
Posts: 4

Kudos [?]: 0 [0], given: 16

Premium Member CAT Tests
Re M08-34 [#permalink]

Show Tags

New post 03 Nov 2017, 04:47
I think this is a high-quality question and I agree with explanation.

Kudos [?]: 0 [0], given: 16

Re M08-34   [#permalink] 03 Nov 2017, 04:47
Display posts from previous: Sort by

M08-34

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

Moderators: chetan2u, Bunuel



GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.