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

It is currently 19 Oct 2019, 15:56

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

In three years, Skippy's dad will be four times as old as Skippy was

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

Hide Tags

Find Similar Topics 
Senior Manager
Senior Manager
User avatar
S
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 422
In three years, Skippy's dad will be four times as old as Skippy was  [#permalink]

Show Tags

New post 30 Oct 2018, 05:45
Top Contributor
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

79% (02:11) correct 21% (01:51) wrong based on 91 sessions

HideShow timer Statistics

In three years, Skippy's dad will be four times as old as Skippy was last year. Today, their ages add up to 48. How old is Skippy today?

a. 9

b. 10

c. 11

d. 12

e. 13

_________________
Senior Manager
Senior Manager
avatar
P
Joined: 09 Jun 2014
Posts: 352
Location: India
Concentration: General Management, Operations
Premium Member Reviews Badge
In three years, Skippy's dad will be four times as old as Skippy was  [#permalink]

Show Tags

New post 30 Oct 2018, 06:22
Baten80 wrote:
In three years, Skippy's dad will be four times as old as Skippy was last year. Today, their ages add up to 48. How old is Skippy today?

a. 9

b. 10

c. 11

d. 12

e. 13




Let us assume the following

Skippy current age= X
Skip's Dad current age = Y

Now according to the question

In three years, Skippy's dad will be four times as old as Skippy was last year.
y+3= 4(x-1)
Today, their ages add up to 48
x+ y =11

So now we have two variables and two equations.

Solving them we get X=11

So option C


Press Kudos if it helps!!
Senior Manager
Senior Manager
User avatar
V
Joined: 22 Feb 2018
Posts: 420
Re: In three years, Skippy's dad will be four times as old as Skippy was  [#permalink]

Show Tags

New post 30 Oct 2018, 06:30
1
OA:C

Let Skippy's age today be \(S\)
Let Skippy's dad age today be \(D\)

As per Question
\(D+3=4(S-1)\)

\(D=4S-7\) ...(1)

\(D+S=48\) ...(2)

Putting the value of \(D\) from (1) into (2), we get

\(4S-7+S=48\)

\(5S-7=48\)

\(5S=55\)

\(S=11\)
_________________
Good, good Let the kudos flow through you
GMAT Club Legend
GMAT Club Legend
User avatar
D
Joined: 18 Aug 2017
Posts: 5020
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member
Re: In three years, Skippy's dad will be four times as old as Skippy was  [#permalink]

Show Tags

New post 21 Apr 2019, 08:22
Baten80 wrote:
In three years, Skippy's dad will be four times as old as Skippy was last year. Today, their ages add up to 48. How old is Skippy today?

a. 9

b. 10

c. 11

d. 12

e. 13


dad age = x and skippy = y
given
x+3=4*(y-1)
and x+y=48
solve we get
48-y=4y-7
y=11
IMO C
GMAT Club Bot
Re: In three years, Skippy's dad will be four times as old as Skippy was   [#permalink] 21 Apr 2019, 08:22
Display posts from previous: Sort by

In three years, Skippy's dad will be four times as old as Skippy was

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





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