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

 It is currently 21 Jul 2018, 06:52

### 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

# Jaime has n comic books. He sells one half of them and then gives one

Author Message
TAGS:

### Hide Tags

SVP
Status: Preparing for the GMAT
Joined: 02 Nov 2016
Posts: 1603
Location: Pakistan
GPA: 3.39
Jaime has n comic books. He sells one half of them and then gives one  [#permalink]

### Show Tags

14 May 2017, 11:02
2
1
00:00

Difficulty:

15% (low)

Question Stats:

76% (00:51) correct 24% (00:59) wrong based on 68 sessions

### HideShow timer Statistics

Jaime has n comic books. He sells one half of them and then gives one third of the ones he has left to a friend. If he has 10 comic books left, how many did he have originally?

A. 30
B. 40
C. 60
D. 80
E. 90

_________________

Official PS Practice Questions
Press +1 Kudos if this post is helpful

Senior Manager
Joined: 24 Apr 2016
Posts: 333
Re: Jaime has n comic books. He sells one half of them and then gives one  [#permalink]

### Show Tags

14 May 2017, 13:33
1
Jaime has n comic books.

He sells one half of them -- Jaime now has n/2 comic books left

Then gives one third of the ones he has left to a friend -- Jaime now has 2/3 of the n/2 comic books left = n/3 comic books left

If he has 10 comic books left => n/3 = 10 => n=30

Senior Manager
Joined: 07 Jul 2012
Posts: 343
Location: India
Concentration: Finance, Accounting
GPA: 3.5
Re: Jaime has n comic books. He sells one half of them and then gives one  [#permalink]

### Show Tags

15 May 2017, 01:07
Let Jamie has n comic books
As per question, we can simplify as follows:

n-$$\frac{n}{2}$$-$$\frac{n}{2}$$*$$\frac{1}{3}$$= 10

n-$$\frac{n}{2}$$-$$\frac{n}{6}$$= 10

$$\frac{6n-3n-n}{6}$$= 10

$$\frac{2n}{6}$$=10=> n=30

Kudos please if you like my explanation!
_________________

Kindly hit kudos if my post helps!

Manager
Joined: 02 Aug 2013
Posts: 65
Location: India
WE: Programming (Consulting)
Jaime has n comic books. He sells one half of them and then gives one  [#permalink]

### Show Tags

Updated on: 16 Oct 2017, 06:36
1
Total number of comic books = n.

$$\frac{n}{2}$$ sold. Remaining = $$\frac{n}{2}$$.

$$\frac{1}{3}$$$$(\frac{n}{2})$$ given to friend. Remaining = $$\frac{2}{3}(\frac{n}{2})$$.

Now,$$\frac{2}{3}(\frac{n}{2}$$) = 10

=> $$\frac{n}{3}$$ = 10

=> 30

Ans: A

Originally posted by singhabhijeet on 15 May 2017, 10:21.
Last edited by singhabhijeet on 16 Oct 2017, 06:36, edited 1 time in total.
Intern
Joined: 11 Apr 2017
Posts: 38
Schools: Kelley '20
Re: Jaime has n comic books. He sells one half of them and then gives one  [#permalink]

### Show Tags

14 Oct 2017, 09:43
Jaime has n comic books.

He sells one half of them -- Jaime now has n/2 comic books left

Then gives one third of the ones he has left to a friend -- Jaime now has 2/3 of the n/2 comic books left = n/3 comic books left

If he has 10 comic books left => n/3 = 10 => n=30

Re: Jaime has n comic books. He sells one half of them and then gives one &nbs [#permalink] 14 Oct 2017, 09:43
Display posts from previous: Sort by

# Events & Promotions

 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®.