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

It is currently 22 Jun 2018, 19:35

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

Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik

  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: 46284
Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 22 Sep 2016, 05:06
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

83% (01:23) correct 18% (01:55) wrong based on 95 sessions

HideShow timer Statistics

Eleven years ago Tina was half as old as Ike will be in 4 years. If Ike is m years old now, how old is Tina now, in terms of m?

A. 4m - 11
B. m/2 + 13
C. 1/(2m - 22)
D. (4m + 11)/2
E. 2m-7

_________________

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

Manager
Manager
avatar
Joined: 29 Aug 2008
Posts: 110
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 22 Sep 2016, 06:24
Let Tina's age be T, so the equation would be.

T-11 = (m+4)/2

Solving for T gives T = (m+26)/2 = m/2 + 13

So IMHO option B.
Manager
Manager
User avatar
B
Joined: 24 Aug 2016
Posts: 68
Location: India
WE: Information Technology (Computer Software)
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 22 Sep 2016, 08:16
Quote:
Eleven years ago Tina was half as old as Ike will be in 4 years. If Ike is m years old now, how old is Tina now, in terms of m?


Ike's current age = m
Ike's age after 4 years = m + 4
Tina age 11 years ago =\(\frac{(m+4)}{2}\)
Tina's current age = \(\frac{(m+4)}{2}\) + 11 = \(\frac{(m+4+22)}{2}\) = \(\frac{m}{2} + 13\)

Ans B
_________________

"If we hit that bullseye, the rest of the dominos will fall like a house of cards. Checkmate."

Manager
Manager
avatar
S
Joined: 24 Oct 2013
Posts: 150
Location: India
Concentration: General Management, Strategy
WE: Information Technology (Computer Software)
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 26 Sep 2016, 21:11
Let current age of Tina and Ike be t and i respectively

t-11 = 1/2(m+4) => 2t-22 = m+4

t = (m+26)/2 => m/2 +13 option B
Intern
Intern
avatar
S
Joined: 20 Sep 2012
Posts: 6
Concentration: Finance, General Management
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 12 Oct 2016, 02:50
Can anybody tells which method is better to use here: plugging in or Algebra?
Board of Directors
User avatar
G
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 3511
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 12 Oct 2016, 03:26
Bunuel wrote:
Eleven years ago Tina was half as old as Ike will be in 4 years. If Ike is m years old now, how old is Tina now, in terms of m?

A. 4m - 11
B. m/2 + 13
C. 1/(2m - 22)
D. (4m + 11)/2
E. 2m-7

Present ages of Tina is " t "
Present ages of Ike is " m "
Quote:
Eleven years ago Tina was half as old as Ike will be in 4 years.

Tinas age 11 years ago was = t - 11
Ikes age 4 years hence = m + 4

According to the question -> \((t - 11) = \frac{( m + 4)}{2}\)

Or, \(2t - 22 = m + 4\)

Or, \(2t - 26 = m\)

Or, \(t = \frac{(m - 26)}{2}\)

Or, \(t = \frac{m}{2} - 13\)

SO, Correct answer will be (B) \(\frac{m}{2} - 13\)


DmitryP wrote:
Can anybody tells which method is better to use here: plugging in or Algebra?


IMHO it's better to do it algebraically because check the Question , it asks us to " Express age of Tina in terms of m "...

Plugging in some value is undoubtedly good , but you will have to -

1. Plug in some value
2. Test it in the Question
3. Again work out and check the value in the question

To add more it , will be difficult to plug in the values for such question...

Hope this helps.
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Senior Manager
Senior Manager
avatar
G
Status: Countdown Begins...
Joined: 03 Jul 2016
Posts: 312
Location: India
Concentration: Technology, Strategy
Schools: IIMB
GMAT 1: 580 Q48 V22
GPA: 3.7
WE: Information Technology (Consulting)
GMAT ToolKit User Reviews Badge
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik [#permalink]

Show Tags

New post 02 Apr 2017, 00:34
DmitryP wrote:
Can anybody tells which method is better to use here: plugging in or Algebra?


In this case, algebra method is better because the end output is expected in equations. If we were given that m= 19 for example, then we can plug in the numbers to get the final answer.
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik   [#permalink] 02 Apr 2017, 00:34
Display posts from previous: Sort by

Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik

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


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®.