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19 Dec 2013, 11:03
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Question Stats:

59% (02:05) correct 41% (00:54) wrong based on 213 sessions

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Peter went to the store to buy paint. Small cans cost $30 and larger cans cost$80. How many small cans of paint did he buy?
Statement #1: Peter spent $220 on paint. Statement #2: Peter bought four cans of paint in total. Some problems on the GMAT Quant section cannot be solved with formulas or with algebra. For some problems, the GMAT makes you wrestle with the number properties themselves. For a discussion of difficult numerical reasoning questions, as well as the full solution to this question, see: http://magoosh.com/gmat/2013/difficult- ... questions/ Mike [Reveal] Spoiler: OA _________________ Mike McGarry Magoosh Test Prep  Magoosh Discount Codes Math Revolution Discount Codes Manhattan GMAT Discount Codes Senior Manager Status: Student Joined: 26 Aug 2013 Posts: 259 Location: France Concentration: Finance, General Management Schools: EMLYON FT'16 GMAT 1: 650 Q47 V32 GPA: 3.44 Re: Peter went to the store to buy paint. Small cans cost$30 [#permalink]

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23 Dec 2013, 15:45
Not really a 700 question but nevertheless an interesting one:

Choice A: If you buy one can at 80, than there are no way to reach the $220. If you buy zero also. And if you buy three than you are already at 240. Than you need two cans at$80 and two at $30. CORRECT Choice B: no clear information ANSWER A. Hope it helps! _________________ Think outside the box Current Student Joined: 06 Sep 2013 Posts: 1998 Concentration: Finance Re: Peter went to the store to buy paint. Small cans cost$30 [#permalink]

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07 Jan 2014, 10:09
mikemcgarry wrote:
Peter went to the store to buy paint. Small cans cost $30 and larger cans cost$80. How many small cans of paint did he buy?
Statement #1: Peter spent $220 on paint. Statement #2: Peter bought four cans of paint in total. Some problems on the GMAT Quant section cannot be solved with formulas or with algebra. For some problems, the GMAT makes you wrestle with the number properties themselves. For a discussion of difficult numerical reasoning questions, as well as the full solution to this question, see: http://magoosh.com/gmat/2013/difficult- ... questions/ Mike Not really a 700 question. Not really a Number Property question, this should be tagged as a Word Problem Integer constraints are commonly tested on the GMAT This problem is meant to deal with exactly that I suggest always simplifying first 3x + 8y = 22 And then x = 22 - 8y / 3 Only 2 works here Cheers! J Magoosh GMAT Instructor Joined: 28 Dec 2011 Posts: 4122 Re: Peter went to the store to buy paint. Small cans cost$30 [#permalink]

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07 Jan 2014, 11:13
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Expert's post
jlgdr wrote:
Not really a 700 question.
Not really a Number Property question, this should be tagged as a Word Problem

Integer constraints are commonly tested on the GMAT

This problem is meant to deal with exactly that

I suggest always simplifying first

3x + 8y = 22

And then x = 22 - 8y / 3

Only 2 works here

Cheers!
J

Dear jlgdr,
By your statement "Only 2 works here", do you mean statement #2? In other words, do you mean to imply that (B) is the answer? If not, it's not clear to me what you think the answer is. Furthermore, I would argue that introducing algebra into this problem doesn't necessarily facilitate the solution, and for some students, may confuse them.
Mike
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Mike McGarry
Magoosh Test Prep

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Peter went to the store to buy paint. Small cans cost $30 and larger [#permalink] ### Show Tags 19 Apr 2017, 18:56 Peter went to the store to buy paint. Small cans cost$30 and larger cans cost $80. How many small cans of paint did he buy? Statement #1: Peter spent$220 on paint.

Statement #2: Peter bought four cans of paint in total.
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Re: Peter went to the store to buy paint. Small cans cost $30 and larger [#permalink] ### Show Tags 19 Apr 2017, 19:42 anupam87 wrote: Peter went to the store to buy paint. Small cans cost$30 and larger cans cost $80. How many small cans of paint did he buy? Statement #1: Peter spent$220 on paint.

Statement #2: Peter bought four cans of paint in total.

Hi

Firstly I am sure this Q must have been discussed earlier too.

Let's see the statements..
I. It gives us equation 30s+80b=220...
ONLY possibility is s=b=2
Sufficient

II. 4 cans can be any combination..
All 4 big. All 4 small. 1&3 etc
Insufficient

A
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Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

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Re: Peter went to the store to buy paint. Small cans cost $30 and larger [#permalink] ### Show Tags 19 Apr 2017, 19:57 (A) Statement 1 - total spending 220$
We know that number of cans will be a natural number.
Let x be number of small cans and y be number of large cans
If y=1 then 30x=140 => no solution
If y=2 then 30x=60=> x=2
Then y cannot be 3 otherwise sum will be greater than 220.
Statement 1 is sufficient.

Statement 2 : Total 4 cans
Possible cases
(0,4)
(1,3)
(2,2)
(3,1)
(4,0)

Only statement 1 is sufficient
(A)
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Joined: 02 Sep 2009
Posts: 39584
Re: Peter went to the store to buy paint. Small cans cost $30 [#permalink] ### Show Tags 19 Apr 2017, 21:16 anupam87 wrote: Peter went to the store to buy paint. Small cans cost$30 and larger cans cost $80. How many small cans of paint did he buy? Statement #1: Peter spent$220 on paint.

Statement #2: Peter bought four cans of paint in total.

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