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

 It is currently 16 Jan 2019, 00:28

### 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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### The winning strategy for a high GRE score

January 17, 2019

January 17, 2019

08:00 AM PST

09:00 AM PST

Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
• ### Free GMAT Strategy Webinar

January 19, 2019

January 19, 2019

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.

# Is the total of the sales prices of 3 products greater than \$23?

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

### Hide Tags

Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 6804
GMAT 1: 760 Q51 V42
GPA: 3.82
Is the total of the sales prices of 3 products greater than \$23?  [#permalink]

### Show Tags

15 Apr 2018, 23:53
00:00

Difficulty:

25% (medium)

Question Stats:

83% (00:56) correct 17% (01:36) wrong based on 35 sessions

### HideShow timer Statistics

[GMAT math practice question]

Is the total of the sales prices of 3 products greater than \$23?

1) The price of the cheapest of the 3 products is at least \$8
2) The price of the second cheapest of the 3 products is at least \$12.

_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only \$149 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

SVP
Joined: 26 Mar 2013
Posts: 1996
Re: Is the total of the sales prices of 3 products greater than \$23?  [#permalink]

### Show Tags

16 Apr 2018, 03:45
MathRevolution wrote:
[GMAT math practice question]

Is the total of the sales prices of 3 products greater than \$23?

1) The price of the cheapest of the 3 products is at least \$8
2) The price of the second cheapest of the 3 products is at least \$12.

1) The price of the cheapest of the 3 products is at least \$8

If all products are at least \$8, then the total will be at least \$24

We know for certain that total is greater than \$23

Sufficient

2) The price of the second cheapest of the 3 products is at least \$12

If we consider the two cheapest products are \$12, then total will be \$24. For sure any third one will be higher.

We know for certain that total is greater than \$23

Sufficient

Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 6804
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: Is the total of the sales prices of 3 products greater than \$23?  [#permalink]

### Show Tags

18 Apr 2018, 03:52
=>

Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem. Remember that equal numbers of variables and independent equations ensure a solution.

If a question includes the expression “greater than”, we should determine the smallest possible value, since all other possibilities are greater than the minimum. Each of the conditions includes the expression “at least”, so this gives us some minimum values.

Condition 1)
Since the cheapest of the three products costs at least \$8, the minimum total cost of the three products is
\$8 + \$8 + \$8 = \$24 > \$23.
Thus, condition 1) is sufficient.

Condition 2)
Since the second cheapest of the three products costs at least \$12, the minimum total cost of the three products is
\$0 + \$12 + \$12 = \$24 > \$23.
Thus, condition 2) is sufficient.

_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only \$149 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

Re: Is the total of the sales prices of 3 products greater than \$23? &nbs [#permalink] 18 Apr 2018, 03:52
Display posts from previous: Sort by

# Is the total of the sales prices of 3 products greater than \$23?

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

 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®.