Each piglet in a litter is fed exactly one-half pound of a : GMAT Data Sufficiency (DS) - Page 2
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 17:40

### 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 June
Open Detailed Calendar

# Each piglet in a litter is fed exactly one-half pound of a

Author Message
TAGS:

### Hide Tags

Manager
Joined: 11 Sep 2013
Posts: 153
Concentration: Finance, Finance
Followers: 2

Kudos [?]: 94 [0], given: 156

Re: Each piglet in a litter is fed exactly [#permalink]

### Show Tags

09 May 2014, 00:57
PranavChamp wrote:
St 1 : InSuf
piglet A fed 1/4 of oats.
St 2 : InSuf
piglet B fed 1/6 of barley.

St 1+2 : Suff

There are total 10 parts of Oats & Barley
Piglet A fed 2 parts out of 10. These 2 parts weigh 0.5 pound.
So 10 parts weigh 2.5 pounds.
Each piglet fed 0.5 pound so we can say that 2.5/0.5 = 5 piglets

How have you come up with 2 parts?
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7125
Location: Pune, India
Followers: 2139

Kudos [?]: 13697 [0], given: 222

Re: Each piglet in a litter is fed exactly [#permalink]

### Show Tags

12 May 2014, 20:19
Raihanuddin wrote:
PranavChamp wrote:
St 1 : InSuf
piglet A fed 1/4 of oats.
St 2 : InSuf
piglet B fed 1/6 of barley.

St 1+2 : Suff

There are total 10 parts of Oats & Barley
Piglet A fed 2 parts out of 10. These 2 parts weigh 0.5 pound.
So 10 parts weigh 2.5 pounds.
Each piglet fed 0.5 pound so we can say that 2.5/0.5 = 5 piglets

How have you come up with 2 parts?

You do not know that oats and barley were mixed in the ratio 4:6 i.e. you cannot say that there are 4 parts of oats and 6 parts of barley. They could be in any ratio and hence we cannot say that piglet A was fed 2 parts of the mix.
Look at the explanations given in previous posts.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199 Veritas Prep Reviews Manager Joined: 11 Sep 2013 Posts: 153 Concentration: Finance, Finance Followers: 2 Kudos [?]: 94 [0], given: 156 Re: Each piglet in a litter is fed exactly [#permalink] ### Show Tags 12 May 2014, 21:55 VeritasPrepKarishma wrote: Raihanuddin wrote: PranavChamp wrote: St 1 : InSuf piglet A fed 1/4 of oats. St 2 : InSuf piglet B fed 1/6 of barley. St 1+2 : Suff There are total 10 parts of Oats & Barley Piglet A fed 2 parts out of 10. These 2 parts weigh 0.5 pound. So 10 parts weigh 2.5 pounds. Each piglet fed 0.5 pound so we can say that 2.5/0.5 = 5 piglets How have you come up with 2 parts? You do not know that oats and barley were mixed in the ratio 4:6 i.e. you cannot say that there are 4 parts of oats and 6 parts of barley. They could be in any ratio and hence we cannot say that piglet A was fed 2 parts of the mix. Look at the explanations given in previous posts. Thank you very much. Can you please give two or three variation of this question so that I can practice and familiarize myself with this type of question? Senior Manager Joined: 10 Mar 2013 Posts: 290 GMAT 1: 620 Q44 V31 GMAT 2: 690 Q47 V37 GMAT 3: 610 Q47 V28 GMAT 4: 700 Q50 V34 GMAT 5: 700 Q49 V36 GMAT 6: 690 Q48 V35 GMAT 7: 750 Q49 V42 GMAT 8: 730 Q50 V39 Followers: 11 Kudos [?]: 98 [0], given: 2405 Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink] ### Show Tags 25 Jul 2014, 02:53 Does anyone have any concrete proof such as a screenshot showing that this is a GMATPrep question? I doubt that GMATPrep would be this difficult. Senior Manager Joined: 15 Aug 2013 Posts: 328 Followers: 0 Kudos [?]: 53 [0], given: 23 Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink] ### Show Tags 30 Aug 2014, 10:01 VeritasPrepKarishma wrote: dkj1984 wrote: Hi Karishma, I understood your explanation for the general part,however,with reference to this problem,I am still a little confused. Can u please elaborate on the usage of the weighted average method for this problem. Thanks! Regards, Ok, let me explain using a different example. Say a meal consists of a sandwich and a milkshake. You eat 1/2 of the sandwich and drink 1/2 of the milkshake. Can I say you have had 1/2 of the meal? Sure, right? If you eat only 1/4 of the sandwich and drink 1/4 of the milkshake, then you would have had only 1/4 of the meal. What happens in case you eat 1/2 of the sandwich but drink only 1/4 of the milkshake? In that case, you have had less than 1/2 of the meal but certainly more than 1/4 of the meal, right? So when piglet A is fed 1/4 of the Oats and 1/6 of the Barley, it is fed less than 1/4 of the total food but more than 1/6 of the total food. Another thing to consider here is that number of piglets has to be a positive integer, say 'n'. Now, since it is given that each piglet gets the same amount of food and there are n piglets, each piglet will get 1/n of the total food. So piglet A must have got 1/n of the total food too. This 1/n must lie between 1/4 and 1/6. Only 1/5 lies between 1/4 and 1/6 (such that n is a positive integer). Hence n must be 5. Hi Karishma, I was with you until the highlighted statement above. I understand the logic as to why piglet A is fed less than a 1/4 but more than a 1/6. That being said, why is 1/5 the only other variables? Even though piglets have an integer constraint, I fail to see how that translates into your last statement? Veritas Prep GMAT Instructor Joined: 16 Oct 2010 Posts: 7125 Location: Pune, India Followers: 2139 Kudos [?]: 13697 [0], given: 222 Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink] ### Show Tags 03 Sep 2014, 00:16 russ9 wrote: VeritasPrepKarishma wrote: dkj1984 wrote: Hi Karishma, I understood your explanation for the general part,however,with reference to this problem,I am still a little confused. Can u please elaborate on the usage of the weighted average method for this problem. Thanks! Regards, Ok, let me explain using a different example. Say a meal consists of a sandwich and a milkshake. You eat 1/2 of the sandwich and drink 1/2 of the milkshake. Can I say you have had 1/2 of the meal? Sure, right? If you eat only 1/4 of the sandwich and drink 1/4 of the milkshake, then you would have had only 1/4 of the meal. What happens in case you eat 1/2 of the sandwich but drink only 1/4 of the milkshake? In that case, you have had less than 1/2 of the meal but certainly more than 1/4 of the meal, right? So when piglet A is fed 1/4 of the Oats and 1/6 of the Barley, it is fed less than 1/4 of the total food but more than 1/6 of the total food. Another thing to consider here is that number of piglets has to be a positive integer, say 'n'. Now, since it is given that each piglet gets the same amount of food and there are n piglets, each piglet will get 1/n of the total food. So piglet A must have got 1/n of the total food too. This 1/n must lie between 1/4 and 1/6. Only 1/5 lies between 1/4 and 1/6 (such that n is a positive integer). Hence n must be 5. Hi Karishma, I was with you until the highlighted statement above. I understand the logic as to why piglet A is fed less than a 1/4 but more than a 1/6. That being said, why is 1/5 the only other variables? Even though piglets have an integer constraint, I fail to see how that translates into your last statement? We need the solution for 1/n such that n is an integer. It must lie between 1/4 and 1/6 i.e. between .25 and .1666. What integer value can n take? Can it be 7? Will 1/7 lie between 1/6 and 1/4? Can it be 3? Will 1/3 lie between 1/4 and 1/6? n cannot be greater than 6 or less than 4 because it goes out of range. So n must be 5. _________________ Karishma Veritas Prep | GMAT Instructor My Blog Get started with Veritas Prep GMAT On Demand for$199

Veritas Prep Reviews

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13506
Followers: 577

Kudos [?]: 163 [0], given: 0

Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink]

### Show Tags

30 Sep 2015, 11:50
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Intern
Joined: 12 Oct 2015
Posts: 2
Location: India
Concentration: Strategy, Operations
WE: Engineering (Manufacturing)
Followers: 0

Kudos [?]: 0 [0], given: 8

Each piglet in a litter is fed exactly one-half pound...... [#permalink]

### Show Tags

21 Sep 2016, 09:55
Each piglet in a litter is fed exactly one-half pound of a mixture of oats and barley. The ratio of the amount of barley to that of oats varies from piglet to piglet, but each piglet is fed some of both grains. How many piglets are there in the litter?

1) Piglet A was fed exactly 1/4 of the oats today.
2) Piglet A was fed exactly 1/6 of the barley today.
Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 3712
Followers: 1298

Kudos [?]: 5859 [1] , given: 66

Re: Each piglet in a litter is fed exactly one-half pound...... [#permalink]

### Show Tags

21 Sep 2016, 15:47
1
KUDOS
Expert's post
ishanmechno wrote:
Each piglet in a litter is fed exactly one-half pound of a mixture of oats and barley. The ratio of the amount of barley to that of oats varies from piglet to piglet, but each piglet is fed some of both grains. How many piglets are there in the litter?

1) Piglet A was fed exactly 1/4 of the oats today.
2) Piglet A was fed exactly 1/6 of the barley today.

Dear ishanmechno,

I'm happy to respond. My friend, you may not be aware of this, but by posting this in a new thread, you have violated the guidelines of GMAT Club. This individual question has been posted numerous times before, for example here:
each-piglet-in-a-litter-is-fed-exactly-one-half-pound-of-a-82321.html
Whenever you are curious about a math question, ALWAYS search extensively for the question before starting a new thread. Only start a new thread if you are 100% sure that the question has never been posted before on GMAT Club. I believe this question is from GMAT Prep. Every single math question in GMAT Prep has already been posted by someone somewhere in this forum. If you search, you will find a thread, and it may be that one of the posts already existing in that thread will answer your questions. If not, you can always add your own questions to that thread, and all the experts who already posted in that thread will be notified.

I will ask Bunuel to merge topics.

Mike
_________________

Mike McGarry
Magoosh Test Prep

Math Expert
Joined: 02 Sep 2009
Posts: 36601
Followers: 7097

Kudos [?]: 93475 [0], given: 10563

Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink]

### Show Tags

21 Sep 2016, 21:00
ishanmechno wrote:
Each piglet in a litter is fed exactly one-half pound of a mixture of oats and barley. The ratio of the amount of barley to that of oats varies from piglet to piglet, but each piglet is fed some of both grains. How many piglets are there in the litter?

1) Piglet A was fed exactly 1/4 of the oats today.
2) Piglet A was fed exactly 1/6 of the barley today.

Merging topics. Please refer to the discussion on previous pages.
_________________
Manhattan GMAT Instructor
Joined: 04 Dec 2015
Posts: 223
GMAT 1: 790 Q51 V49
GRE 1: 340 Q170 V170
Followers: 25

Kudos [?]: 85 [1] , given: 18

Re: Each piglet in a litter is fed exactly one-half pound of a [#permalink]

### Show Tags

22 Sep 2016, 09:35
1
KUDOS
Expert's post
tejal777 wrote:
Each piglet in a litter is fed exactly one-half pound of a mixture of oats and barley. The ratio of the amount of barley to that of oats varies from piglet to piglet, but each piglet is fed some of both grains. how many piglets are there in the litter?

(1) Piglet A was fed exactly 1/4 of the oats today
(2) Piglet A was fed exactly 1/6 of the barley today

What bothers me is that it's unclear whether the statements are referring to the total amount of oats/barley fed to all of the piglets, or the total amount of oats/barley in the mixture. The original answer implies that we should assume those are the same (i.e. 100% of the mixture is fed to the piglets every day), but that seems far from obvious to me.

If you don't make that assumption, here's a solution where there are four piglets:

total mixture - 1.8 lbs oats, 0.3 lbs barley, 2.1 lbs total
each piglet (including piglet A) gets 0.45 lbs of oats and 0.05 lbs of barley
four piglets in total
0.1 lbs of the mixture goes uneaten
_________________

Chelsey Cooley | Manhattan Prep Instructor | Seattle and Online

Did you like this post? Check out my upcoming GMAT classes and private tutoring!

Manhattan Prep GMAT Discount | Manhattan Prep GMAT Reviews

Re: Each piglet in a litter is fed exactly one-half pound of a   [#permalink] 22 Sep 2016, 09:35

Go to page   Previous    1   2   [ 31 posts ]

Similar topics Replies Last post
Similar
Topics:
7 A pumpkin patch contains x pumpkins that weigh 10 pounds each and y 11 23 Jul 2015, 23:52
4 Each person in a club with 100 members voted for exactly one of 3 cand 5 25 Nov 2014, 07:20
7 Bowls X and Y each contained exactly 2 jelly beans, each of 6 08 Apr 2012, 08:44
23 Each person on a committee with 40 members voted for exactly 11 01 Apr 2012, 04:29
Bowls X and Y each contained exactly 2 jelly beans, each of 4 24 Mar 2008, 03:52
Display posts from previous: Sort by