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

It is currently 20 Jul 2018, 15:32

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

An old man distributed all the gold coins he had to his two

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

Hide Tags

Manager
Manager
User avatar
Joined: 11 Feb 2014
Posts: 66
GMAT ToolKit User
An old man distributed all the gold coins he had to his two  [#permalink]

Show Tags

New post 22 Jun 2014, 11:12
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

94% (00:52) correct 6% (01:20) wrong based on 115 sessions

HideShow timer Statistics

An old man distributed all the gold coins he had to his two sons into two different numbers such that the difference between the squares of the two numbers is 36 times the difference between the two numbers. How many coins did the old man have?

(A) 24
(B) 26
(C) 30
(D) 36
(E) 40

Source: Math Bible Nova
Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 47157
Re: An old man distributed all the gold coins he had to his two  [#permalink]

Show Tags

New post 22 Jun 2014, 11:27
Game wrote:
An old man distributed all the gold coins he had to his two sons into two different numbers such that the difference between the squares of the two numbers is 36 times the difference between the two numbers. How many coins did the old man have?

(A) 24
(B) 26
(C) 30
(D) 36
(E) 40

Source: Math Bible Nova


Let the number of coins one son got be x and the number of coins another got be y. Total = x + y.

x^2 - y^2 = 36(x - y) --> x + y = 36.

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

1 KUDOS received
SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1837
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: An old man distributed all the gold coins he had to his two  [#permalink]

Show Tags

New post 15 Jul 2014, 22:28
1
Let the coins distributed be x & y

We require to find x+y

\(x^2 - y^2 = 36 (x-y)\)

x+y = 36

Answer = D
_________________

Kindly press "+1 Kudos" to appreciate :)

Manager
Manager
avatar
Joined: 21 Oct 2013
Posts: 189
Location: Germany
GMAT 1: 660 Q45 V36
GPA: 3.51
Re: An old man distributed all the gold coins he had to his two  [#permalink]

Show Tags

New post 28 Jul 2014, 03:57
Let No of coins be a & b respectively. Hence Total Number of coins = a+b.

Then: a²-b² = 36(a-b) --> (a-b)(a+b) = 36(a-b) --> a+b=36

Answer D.
Senior Manager
Senior Manager
avatar
S
Joined: 15 Jan 2017
Posts: 361
CAT Tests
Re: An old man distributed all the gold coins he had to his two  [#permalink]

Show Tags

New post 29 Aug 2017, 02:39
Just a thought - would such an easy/ quick question come in the quant part of the GMAT? (I was comparing to even some of the 500 level questions I was doing from the forum)..
Re: An old man distributed all the gold coins he had to his two &nbs [#permalink] 29 Aug 2017, 02:39
Display posts from previous: Sort by

An old man distributed all the gold coins he had to his two

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

Events & Promotions

PREV
NEXT


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®.