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

 It is currently 14 Dec 2018, 11:53

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Typical Day of a UCLA MBA Student - Recording of Webinar with UCLA Adcom and Student

December 14, 2018

December 14, 2018

10:00 PM PST

11:00 PM PST

Carolyn and Brett - nicely explained what is the typical day of a UCLA student. I am posting below recording of the webinar for those who could't attend this session.
• ### Free GMAT Strategy Webinar

December 15, 2018

December 15, 2018

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# The average television prime-time advertising unit of 30

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 02 Mar 2017
Posts: 263
Location: India
Concentration: Finance, Marketing

### Show Tags

23 Apr 2017, 23:12
00:00

Difficulty:

15% (low)

Question Stats:

84% (01:00) correct 16% (00:58) wrong based on 40 sessions

### HideShow timer Statistics

The average television prime-time advertising unit of 30 seconds
cost $30,000 in 1973 and$50,000 in 1977. What was the
approximate percent increase in the cost of a unit?

A)20%
B)33%
C)40%
D)60%
E)67%

_________________

Kudos-----> If my post was Helpful

Math Expert
Joined: 02 Sep 2009
Posts: 51215

### Show Tags

23 Apr 2017, 23:48
VyshakhR1995 wrote:
The average television prime-time advertising unit of 30 seconds
cost $30,000 in 1973 and$50,000 in 1977. What was the
approximate percent increase in the cost of a unit?

A)20%
B)33%
C)40%
D)60%
E)67%

(Increase)/(original)*100 = 20,000/30,000*100 = ~67%.

_________________
Target Test Prep Representative
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2830

### Show Tags

04 Sep 2018, 03:25
VyshakhR1995 wrote:
The average television prime-time advertising unit of 30 seconds
cost $30,000 in 1973 and$50,000 in 1977. What was the
approximate percent increase in the cost of a unit?

A)20%
B)33%
C)40%
D)60%
E)67%

We can use the percent change formula:

(New - Old)/Old x 100

(50,000 - 30,000)/30,000 x 100

20,000/30,000 x 100

2/3 x 100

200/3 ≈ 67

_________________

Jeffery Miller

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4277
Location: India
GPA: 3.5

### Show Tags

04 Sep 2018, 08:27
VyshakhR1995 wrote:
The average television prime-time advertising unit of 30 seconds
cost $30,000 in 1973 and$50,000 in 1977. What was the
approximate percent increase in the cost of a unit?

A)20%
B)33%
C)40%
D)60%
E)67%

Neglect the trailing 0's and count percentage

$$\frac{5 - 3}{3}*100$$

= 67% , Answer must be (E)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Re: The average television prime-time advertising unit of 30 &nbs [#permalink] 04 Sep 2018, 08:27
Display posts from previous: Sort by