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

It is currently 23 Oct 2019, 13:56

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

Mario bought equal numbers of 2-cent and 3-cent stamps. If the total

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58464
Mario bought equal numbers of 2-cent and 3-cent stamps. If the total  [#permalink]

Show Tags

New post 25 Feb 2019, 00:04
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

78% (01:14) correct 22% (01:38) wrong based on 51 sessions

HideShow timer Statistics

GMAT Club Legend
GMAT Club Legend
User avatar
D
Joined: 18 Aug 2017
Posts: 5043
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member
Re: Mario bought equal numbers of 2-cent and 3-cent stamps. If the total  [#permalink]

Show Tags

New post 25 Feb 2019, 01:01
1
Bunuel wrote:
Mario bought equal numbers of 2-cent and 3-cent stamps. If the total cost of the stamps was $1.00, what was the total number of stamps bought?

(A) 25

(B) 34

(C) 40

(D) 46

(E) 50


let each stamp ;x
5x=100
x=20
total ; 40 stamps
IMO C
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4019
Location: Canada
Re: Mario bought equal numbers of 2-cent and 3-cent stamps. If the total  [#permalink]

Show Tags

New post 14 May 2019, 09:03
Top Contributor
Bunuel wrote:
Mario bought equal numbers of 2-cent and 3-cent stamps. If the total cost of the stamps was $1.00, what was the total number of stamps bought?

(A) 25

(B) 34

(C) 40

(D) 46

(E) 50


Let x = the NUMBER of 2-cent stamps purchased
So, x = the NUMBER of 3-cent stamps purchased

This means...
2x = the COST of 2-cent stamps purchased (in CENTS)
And, 3x = the COST of 3-cent stamps purchased (in CENTS)

We can write: (COST of 2-cent stamps purchased) + (COST of 3-cent stamps purchased) = 100 cents
Substitute to get: 2x + 3x = 100
Simplify: 5x = 100
Solve: x = 100/5 = 20

So, Mario bought 20 2-cent stamps, and 20 3-cent stamps, for a total of 40 stamps

Answer: C

Cheers,
Brent
_________________
Test confidently with gmatprepnow.com
Image
Senior Manager
Senior Manager
User avatar
G
Joined: 31 May 2017
Posts: 334
GMAT ToolKit User Reviews Badge
Re: Mario bought equal numbers of 2-cent and 3-cent stamps. If the total  [#permalink]

Show Tags

New post 14 May 2019, 21:45
Let the number of stamps purchased is X.

Since the number of 20 cents and 30 cents stamp purchased is same we can consider number of stamps bought as 2x + 3x = 5x

5x = $1.00
x = 20

The total number of stamps bought is 40

Ans: C
_________________
Target Test Prep Representative
User avatar
D
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8137
Location: United States (CA)
Re: Mario bought equal numbers of 2-cent and 3-cent stamps. If the total  [#permalink]

Show Tags

New post 16 May 2019, 20:02
Bunuel wrote:
Mario bought equal numbers of 2-cent and 3-cent stamps. If the total cost of the stamps was $1.00, what was the total number of stamps bought?

(A) 25

(B) 34

(C) 40

(D) 46

(E) 50


Letting x = the number of stamps of each denomination that he bought, we can create the equation:

2x + 3x = 100

5x = 100

x = 20

So x + x = 20 + 20 = 40 stamps were purchased.

Answer: C
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: Mario bought equal numbers of 2-cent and 3-cent stamps. If the total   [#permalink] 16 May 2019, 20:02
Display posts from previous: Sort by

Mario bought equal numbers of 2-cent and 3-cent stamps. If the total

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





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