Six shipments of machine parts were shipped from a factory : GMAT Data Sufficiency (DS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 24 Jan 2017, 08:55

### 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

# Six shipments of machine parts were shipped from a factory

Author Message
TAGS:

### Hide Tags

Moderator
Joined: 01 Sep 2010
Posts: 3097
Followers: 788

Kudos [?]: 6574 [0], given: 1023

Six shipments of machine parts were shipped from a factory [#permalink]

### Show Tags

18 Nov 2012, 12:45
4
This post was
BOOKMARKED
00:00

Difficulty:

65% (hard)

Question Stats:

60% (02:41) correct 40% (01:37) wrong based on 87 sessions

### HideShow timer Statistics

Attachment:

table.png [ 54.19 KiB | Viewed 4300 times ]
Six shipments of machine parts were shipped from a factory on two trucks, with each shipment entirelyon one of the trucks. Each shipment was labeled either SI, S2, S3, S4, S5, or S6. The table shows the value of each shipment as a fraction of the total value of the six shipments. Ifthe shipments on the first truck had avalue greater than 1/2 of the total value of the six shipments, was S3 shipped on the first truck?

(1) S2 and S4 were shipped on the first truck.

(2) SI and S6 were shipped on the second truck.

OPEN DISCUSSION OF THIS QUESTION IS HERE: six-shipments-of-machine-parts-were-shipped-from-a-factory-144136.html
[Reveal] Spoiler: OA

_________________
Director
Status: Done with formalities.. and back..
Joined: 15 Sep 2012
Posts: 647
Location: India
Concentration: Strategy, General Management
Schools: Olin - Wash U - Class of 2015
WE: Information Technology (Computer Software)
Followers: 47

Kudos [?]: 549 [4] , given: 23

Re: Sixshipments of machine parts were shipped from a factory on [#permalink]

### Show Tags

18 Nov 2012, 16:29
4
KUDOS
2
This post was
BOOKMARKED
carcass wrote:
Sixshipments of machine parts were shipped from a factory on two trucks, with each shipment entirelyon one of the trucks. Each shipment was labeled either SI, S2, S3, S4, S5, or S6. The table shows the value of each shipment as a fraction of the total value of the six shipments. Ifthe shipments on the first truck had avalue greater than 1/2 of the total value of the six shipments, was S3 shipped on the first truck?

(1) S2 and S4 were shipped on the first truck.
(2) SI and S6 were shipped on the second truck.

The good news is that I was on the right path untill the end though I Picked A not B.
I would like to know the real point of this question.
Regards

to avoid fraction, lets first pick a number such as 120 for total value. Thus
S1 = 30, S2= 24, S3= 20, S4=9,S5=16, S6=12
Now we are told first truck had greater than 1/2 of total value = more than 60
And we want to know if S3 is part of this.

Statement 1: S2 and S4 were on first truck = 24+9 = 35
But we know that First truck had more than 60, so it could have additional, S1 or , S1+S3, or S3+S5 etc combinations. Not sufficient.

Statement 2: S1 and S6 were on second truck = 30+12 = 42
Therefore, if S3 was also to be on second truck, total on second truck would be 42+20 =62. So Maximum on first truck could be 120-62= 58 (less than 1/2)
Which is not possible. Hence we can conclusively say S3 was not on second truck. Sufficient.

Ans B it is!
_________________

Lets Kudos!!!
Black Friday Debrief

Moderator
Joined: 01 Sep 2010
Posts: 3097
Followers: 788

Kudos [?]: 6574 [0], given: 1023

Re: Six shipments of machine parts were shipped from a factory [#permalink]

### Show Tags

19 Nov 2012, 03:35
I did the same Sir

This was really tough to visualize. The key was to understand the combination in the first statment that led to the insufficienty.

Thanks
_________________
Intern
Joined: 20 Apr 2013
Posts: 24
Concentration: Finance, Finance
GMAT Date: 06-03-2013
GPA: 3.3
WE: Accounting (Accounting)
Followers: 0

Kudos [?]: 2 [0], given: 99

Re: Six shipments of machine parts were shipped from a factory [#permalink]

### Show Tags

01 May 2013, 09:42
carcass wrote:
Six shipments of machine parts were shipped from a factory on two trucks, with each shipment entirelyon one of the trucks. Each shipment was labeled either SI, S2, S3, S4, S5, or S6. The table shows the value of each shipment as a fraction of the total value of the six shipments. Ifthe shipments on the first truck had avalue greater than 1/2 of the total value of the six shipments, was S3 shipped on the first truck?
(1) S2 and S4 were shipped on the first truck.

(2) SI and S6 were shipped on the second truck.

The good news is that I was on the right path untill the end though I Picked A not B.

I would like to know the real point of this question.

Regards

I didn't understand the highlighted part. Could someone clarify.
Math Expert
Joined: 02 Sep 2009
Posts: 36636
Followers: 7106

Kudos [?]: 93647 [0], given: 10583

Re: Six shipments of machine parts were shipped from a factory [#permalink]

### Show Tags

02 May 2013, 02:05
Rajkiranmareedu wrote:
carcass wrote:
Six shipments of machine parts were shipped from a factory on two trucks, with each shipment entirelyon one of the trucks. Each shipment was labeled either SI, S2, S3, S4, S5, or S6. The table shows the value of each shipment as a fraction of the total value of the six shipments. Ifthe shipments on the first truck had avalue greater than 1/2 of the total value of the six shipments, was S3 shipped on the first truck?
(1) S2 and S4 were shipped on the first truck.

(2) SI and S6 were shipped on the second truck.

The good news is that I was on the right path untill the end though I Picked A not B.

I would like to know the real point of this question.

Regards

I didn't understand the highlighted part. Could someone clarify.

Check here: six-shipments-of-machine-parts-were-shipped-from-a-factory-144136.html
_________________
Re: Six shipments of machine parts were shipped from a factory   [#permalink] 02 May 2013, 02:05
Similar topics Replies Last post
Similar
Topics:
9 A factory has three types of machines – A, B, and C – each of which wo 5 21 Jul 2016, 03:42
79 Six shipments of machine parts were shipped from a factory 9 14 Dec 2012, 05:24
8 A marzipan factory has two machines producing marzipan. Ever 5 29 Jul 2012, 13:29
How long does it take to drive from the factory to the 8 12 Aug 2010, 00:26
1 If a light bulb is selected at random from a shipment, what 11 25 Oct 2009, 04:15
Display posts from previous: Sort by