Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

 It is currently 16 Jul 2019, 13:39

### 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

# To reproduce an old photograph, a photographer charges x dollars to ma

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 56244
To reproduce an old photograph, a photographer charges x dollars to ma  [#permalink]

### Show Tags

05 Jul 2018, 23:23
00:00

Difficulty:

5% (low)

Question Stats:

100% (02:07) correct 0% (00:00) wrong based on 25 sessions

To reproduce an old photograph, a photographer charges x dollars to make a negative, $$\frac{3x}{5}$$ dollars for each of the first 10 prints, and $$\frac{x}{5}$$ dollars for each print in excess of 10 prints. If $45 is the total charge to make a negative and 20 prints from an old photograph, what is the value of x? (A) 3 (B) 3.5 (C) 4 (D) 4.5 (E) 5 _________________ Senior PS Moderator Joined: 26 Feb 2016 Posts: 3360 Location: India GPA: 3.12 To reproduce an old photograph, a photographer charges x dollars to ma [#permalink] ### Show Tags 05 Jul 2018, 23:29 Bunuel wrote: To reproduce an old photograph, a photographer charges x dollars to make a negative, $$\frac{3x}{5}$$ dollars for each of the first 10 prints, and $$\frac{x}{5}$$ dollars for each print in excess of 10 prints. If$45 is the total charge to make a negative and 20 prints from an old photograph, what is the value of x?

(A) 3
(B) 3.5
(C) 4
(D) 4.5
(E) 5

From the question stem, we can deduce the following information
$$x + 10*\frac{3x}{5} + (n-10)*\frac{x}{5} = 45$$ where n = total number of prints.

Substituting the value for n = 20,$$x + 6x + 2x = 45$$ -> $$x = \frac{45}{9} = 5$$

Therefore, the total charge of making a negative and 20 prints is 5(Option E)
_________________
You've got what it takes, but it will take everything you've got
VP
Status: Learning stage
Joined: 01 Oct 2017
Posts: 1028
WE: Supply Chain Management (Energy and Utilities)
Re: To reproduce an old photograph, a photographer charges x dollars to ma  [#permalink]

### Show Tags

05 Jul 2018, 23:32
Bunuel wrote:
To reproduce an old photograph, a photographer charges x dollars to make a negative, $$\frac{3x}{5}$$ dollars for each of the first 10 prints, and $$\frac{x}{5}$$ dollars for each print in excess of 10 prints. If $45 is the total charge to make a negative and 20 prints from an old photograph, what is the value of x? (A) 3 (B) 3.5 (C) 4 (D) 4.5 (E) 5 Given,$$x+10*\frac{3x}{5}+10*\frac{x}{5}$$=$$45$$ Or, 9x=45 Or, x=5 Ans. (E) _________________ Regards, PKN Rise above the storm, you will find the sunshine Target Test Prep Representative Status: Head GMAT Instructor Affiliations: Target Test Prep Joined: 04 Mar 2011 Posts: 2823 Re: To reproduce an old photograph, a photographer charges x dollars to ma [#permalink] ### Show Tags 13 Jul 2018, 14:19 Bunuel wrote: To reproduce an old photograph, a photographer charges x dollars to make a negative, $$\frac{3x}{5}$$ dollars for each of the first 10 prints, and $$\frac{x}{5}$$ dollars for each print in excess of 10 prints. If$45 is the total charge to make a negative and 20 prints from an old photograph, what is the value of x?

(A) 3
(B) 3.5
(C) 4
(D) 4.5
(E) 5

We can create the equation:

45 = x + 10(3x/5) + 10(x/5)

45 = x + 6x + 2x

45 = 9x

5 = x

_________________

# Jeffrey Miller

Jeff@TargetTestPrep.com
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.

Re: To reproduce an old photograph, a photographer charges x dollars to ma   [#permalink] 13 Jul 2018, 14:19
Display posts from previous: Sort by