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

 It is currently 19 Oct 2018, 04:25

### 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

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

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

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 50001
Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik  [#permalink]

### Show Tags

22 Sep 2016, 05:06
00:00

Difficulty:

15% (low)

Question Stats:

85% (01:47) correct 15% (02:33) wrong based on 97 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

_________________
Manager
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

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
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

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
Joined: 24 Oct 2013
Posts: 142
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

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
Joined: 20 Sep 2012
Posts: 7
Location: Russian Federation
Concentration: Finance, General Management
GMAT 1: 710 Q49 V38
GPA: 3.5
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik  [#permalink]

### Show Tags

12 Oct 2016, 02:50
Can anybody tells which method is better to use here: plugging in or Algebra?
Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4094
Location: India
GPA: 3.5
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik  [#permalink]

### Show Tags

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
Status: Countdown Begins...
Joined: 03 Jul 2016
Posts: 297
Location: India
Concentration: Technology, Strategy
Schools: IIMB
GMAT 1: 580 Q48 V22
GPA: 3.7
WE: Information Technology (Consulting)
Re: Eleven years ago Tina was half as old as Ike will be in 4 years. If Ik  [#permalink]

### Show Tags

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 &nbs [#permalink] 02 Apr 2017, 00:34
Display posts from previous: Sort by