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

 It is currently 19 Sep 2019, 03:48

### 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

# Elmer, the circus Elephant, is currently three times older than Leo, t

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

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58131
Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 07:33
00:00

Difficulty:

5% (low)

Question Stats:

95% (01:33) correct 5% (02:52) wrong based on 116 sessions

### HideShow timer Statistics

Tough and Tricky questions: Word Problems.

Elmer, the circus Elephant, is currently three times older than Leo, the circus Lion. In five years from now, Leo the circus Lion will be exactly half as old as Elmer, the circus Elephant. How old is Elmer today?

A) 10
B) 15
C) 17
D) 22
E) 25

Kudos for a correct solution.

Source: Chili Hot GMAT

_________________
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 9638
Location: Pune, India
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 22:00
2
farzana87 wrote:
3 times older THAN L, so E= 4L
L+5=.5(5+E)
E=10

Strictly mathematically, three times more would mean 4x but in regular parlance, 3 times older means 3x. So usually, in questions, when people come across 'three time more', they write it as 3x. Hopefully, GMAT will word the questions in a way to avoid this contradiction.

Now, solving the question taking regular parlance into consideration,
"Elmer, the circus Elephant, is currently three times older than Leo, the circus Lion. "

Elmer = 3*Leo
Usually, ages are integers so there is a good possibility that the age of Elmer is 15 (the only option that is a multiple of 3).
Then age of Leo would be 5. In 5 yrs, Elmer would be 20 and Leo would be 10 - so Leo would be half as old as Elmer.
_________________
Karishma
Veritas Prep GMAT Instructor

Learn more about how Veritas Prep can help you achieve a great GMAT score by checking out their GMAT Prep Options >
Manager
Joined: 21 Jul 2014
Posts: 119
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 07:44
1
1
Bunuel wrote:

Tough and Tricky questions: Word Problems.

Elmer, the circus Elephant, is currently three times older than Leo, the circus Lion. In five years from now, Leo the circus Lion will be exactly half as old as Elmer, the circus Elephant. How old is Elmer today?

A) 10
B) 15
C) 17
D) 22
E) 25

Kudos for a correct solution.

Let e = Elmer's age today and l = Leo's age today.

First, we translate the sentences into algebraic expressions:
$$e = 3l$$
$$l+5 = (e+5)/2$$

Then we solve for e.

$$l+5 = (e+5)/2$$
$$2(l+5) = 2((e+5)/2)$$
$$2l+10 = e+5$$
$$2l+10-5 = e+5-5$$
$$2l+5 = e$$

$$e = 3l$$
$$2l+5 = 3l$$
$$2l+5-2l = 3l-2l$$
$$5=l$$

$$e = 3l$$
$$e = 3(5)$$
$$e = 15$$

Intern
Joined: 25 May 2014
Posts: 46
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 08:56
1
Given: Elmer is 3 times older than Leo---> E = 3L
Elmer's age 5 years from now = E+5
Leo's age 5 years from now = L+5
after 5 years Leo will be exactly half as old as Elmer-----> L+5 = (E+5)/2
substituting the value of L we get E/3 + 5 = (E+5)/2----> E=15
B
_________________
Never Try Quitting, Never Quit Trying
Intern
Joined: 25 Jun 2014
Posts: 36
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 09:34
1
Is the answer B?
- Now: Leo is x years old, El is 3x years old
- 5 years later: Leo is x+5, El is 3x+5 and is 2 ( x+5) ( twice Leo's age)/
=> x=5 => El is 3.5 years old = 15
Manager
Joined: 14 Sep 2014
Posts: 86
WE: Engineering (Consulting)
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 21:53
1
Let current age of elephant be e and lion be l

e = 3l
e+5 = 2(l+5)

l = 5
e = 15
Senior Manager
Joined: 17 Mar 2014
Posts: 431
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

25 Nov 2014, 02:47
1
Let us consider Leo's current age is X
Elmer's current age = 3X ( Because Elmer is currently three times older than Leo)

After 5 years,

Age of Leo= X+5
Age of Elmer = 3X+5

As per question, after 5 years, Leo will be exactly half as old as Elmer.

X+5= 1/2(3X+5)

Solve above equation for X,
X= 5
Elmer's current age is 3*5=15

Intern
Joined: 20 Jan 2013
Posts: 33
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

25 Nov 2014, 05:42
1
Elmer (E) is 3 times older than Leo(L) => E = 3L
Elmer's age 5 years from now = E+5
Leo's age 5 years from now = L+5
after 5 years Leo will be exactly half as old as Elmer => L+5 = (E+5)/2
substituting the value of L we get E/3 + 5 = (E+5)/2 => E=15

_________________
_________________

KUDOS is always a good way to thank anyone.
It encourages someone to post more questions and also answers.

KUDOS Please if My post helps you in anyway. Your Kudos keep me alive [/color]
Intern
Affiliations: University of texas at
Joined: 02 Apr 2013
Posts: 30
GMAT 1: 640 Q48 V30
GMAT 2: 710 Q49 V37
WE: Research (Consumer Products)
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 10:16
3 times older THAN L, so E= 4L
L+5=.5(5+E)
E=10
SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1775
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

24 Nov 2014, 21:09
Answer = B) 15

Elmer ......................... Leo

x ................................ $$\frac{x}{3}$$ (Current ages)

x+5 ......................... $$\frac{x}{3} + 5$$ (5 years onward)

Given that after 5 years, Leo the circus Lion will be exactly half as old as Elmer, the circus Elephant

Setting up the equation

$$\frac{1}{2} (x+5) = \frac{x}{3} + 5$$

$$x - \frac{2x}{3} = 10 - 5$$

x = 5*3 = 15
_________________
Kindly press "+1 Kudos" to appreciate
Manager
Joined: 21 Jan 2014
Posts: 61
WE: General Management (Non-Profit and Government)
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

25 Nov 2014, 05:57
Present Age of Elmer = E
Present Age Leo = L

Given that E=3L

Also After 5 years Leo's age becomes half of Elmer.

(E+5)/2=(L+5)
E=2L+5
L=5;since E=3L So E=15

Math Expert
Joined: 02 Sep 2009
Posts: 58131
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

25 Nov 2014, 08:06
Bunuel wrote:

Tough and Tricky questions: Word Problems.

Elmer, the circus Elephant, is currently three times older than Leo, the circus Lion. In five years from now, Leo the circus Lion will be exactly half as old as Elmer, the circus Elephant. How old is Elmer today?

A) 10
B) 15
C) 17
D) 22
E) 25

Kudos for a correct solution.

Source: Chili Hot GMAT

The correct answer is B.

Check other Age Problems HERE.
_________________
Current Student
Joined: 21 Jan 2015
Posts: 39
Location: United States
Schools: Booth PT '20
GMAT 1: 660 Q44 V38
GPA: 3.2
Re: Elmer, the circus Elephant, is currently three times older than Leo, t  [#permalink]

### Show Tags

05 Dec 2016, 09:41
Set up equations.
E=3L
(L+5) = ½(E+5)

Solve.
L+5 = ½(3L+5)
L+5 = 1.5L + 2.5
2.5 = 0.5L
L=5 years old

E= (3)(5) = 15 years old
Re: Elmer, the circus Elephant, is currently three times older than Leo, t   [#permalink] 05 Dec 2016, 09:41
Display posts from previous: Sort by

# Elmer, the circus Elephant, is currently three times older than Leo, t

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

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