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

 It is currently 13 Nov 2018, 14:30

### 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 November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
• ### Essential GMAT Time-Management Hacks

November 14, 2018

November 14, 2018

07:00 PM PST

08:00 PM PST

Join the webinar and learn time-management tactics that will guarantee you answer all questions, in all sections, on time. Save your spot today! Nov. 14th at 7 PM PST
• ### \$450 Tuition Credit & Official CAT Packs FREE

November 15, 2018

November 15, 2018

10:00 PM MST

11:00 PM MST

EMPOWERgmat is giving away the complete Official GMAT Exam Pack collection worth \$100 with the 3 Month Pack (\$299)

# All packets of cookies have same price, and all pastries also have the

Author Message
TAGS:

### Hide Tags

DS Forum Moderator
Joined: 21 Aug 2013
Posts: 1365
Location: India
All packets of cookies have same price, and all pastries also have the  [#permalink]

### Show Tags

17 Jul 2018, 23:19
00:00

Difficulty:

15% (low)

Question Stats:

88% (01:38) correct 13% (01:13) wrong based on 40 sessions

### HideShow timer Statistics

All packets of cookies have same price, and all pastries also have the same price; in a coffee shop. Whats the price of 6 packets of cookies and 3 pastries?

(1) 12 pastries and 15 packets of cookies cost \$33.

(2) Price of a packet of cookie is 1/3 less than the price of a pastry.
Senior Manager
Joined: 22 Feb 2018
Posts: 391
Re: All packets of cookies have same price, and all pastries also have the  [#permalink]

### Show Tags

24 Jul 2018, 08:47
1
amanvermagmat wrote:
All packets of cookies have same price, and all pastries also have the same price; in a coffee shop. Whats the price of 6 packets of cookies and 3 pastries?

(1) 12 pastries and 15 packets of cookies cost \$33.

(2) Price of a packet of cookie is 1/3 less than the price of a pastry.

OA: C
Let the price of 1 packet of cookie be C , and price of 1 pastry be P
We have to find the value of 6C+3P

Statement 1 : 15C+12P=33
Dividing both sides by 3, we get
5C+4P=11
We are not able to calculate value of 6C+3P or value of both C and P individually
Statement 1 alone is not sufficient

Statement 2 : C=P/3
3C=P
We can reduce the question stem to what is value of 15C or 5P, but still need value of either C or P
Statement 2 alone is not sufficient

Combining Statement 1 and Statement 2, we have two equation and two variable
5C+4P=11 ...(1)
3C-P=0 ....(2)
These equations do not represent parallel or coincident line , so we will get unique value of C and P.
Hence combining Statement 1 and Statement 2 will give us the unique value of 6C+3P
_________________

Good, good Let the kudos flow through you

Re: All packets of cookies have same price, and all pastries also have the &nbs [#permalink] 24 Jul 2018, 08:47
Display posts from previous: Sort by