When 200 gallons of oil were removed from a tank

Oldest

Best Reply

Author

Message

TAGS:

Manager

Joined: 02 Sep 2008

Posts: 104

Followers: 1

Kudos [?]: 7 [0], given: 1

When 200 gallons of oil were removed from a tank [#permalink]

25 Mar 2009, 23:05

00:00

Question Stats:

72% (02:12) correct

27% (01:48) wrong

based on 1 sessions

When 200 gallons of oil were removed from a tank, the volume of oil left in the tank was \frac{3}{7} of the tank's capacity. What was the tank’s capacity?

(1) Before the 200 gallons were removed, the volume of oil in the tank was \frac{1}{2} of the tank's capacity.
(2) After the 200 gallons were removed, the volume of the oil left in the tank was 1,600 gallons less than the tank's capacity.

Official Guide 12 Question

Question: 27
Page: 275
Difficulty: 600

Find All Official Guide Questions

Video Explanations:

[Reveal] Spoiler: OA

Kaplan GMAT Prep Discount Codes

Knewton GMAT Discount Codes

GMAT Pill GMAT Discount Codes

Manager

Joined: 09 Nov 2008

Posts: 148

Followers: 1

Kudos [?]: 8 [0], given: 3

Re: Quantity [#permalink]

26 Mar 2009, 02:55

D
(1) 1/2*x-3/7*x=200 , can solve for x
(2) x-1600=3/7*x

Senior Manager

Joined: 16 Jan 2009

Posts: 351

Location: United States

Schools: Anderson '15, Insead '13

GMAT 1: 710 Q50 V35

GPA: 3

WE: Sales (Telecommunications)

Followers: 2

Kudos [?]: 55 [0], given: 15

Re: Quantity [#permalink]

26 Mar 2009, 03:31

Answer : D
A : 1/2*x-3/7*x=200 SUFFICIENT
B : x-1600=3/7*x SUFFICIENT
_________________

Lahoosaher

Manager

Joined: 11 Aug 2008

Posts: 165

Followers: 1

Kudos [?]: 32 [0], given: 8

Re: Quantity [#permalink]

14 Oct 2009, 08:36

liubhs02 wrote:

D
(1) 1/2*x-3/7*x=200 , can solve for x
(2) x-1600=3/7*x

Same approach, agree!

Manager

Status: Next engagement on Nov-19-2011

Joined: 12 Jan 2011

Posts: 81

Location: New Delhi, India

Schools: IIM, ISB, & XLRI

WE 1: B.Tech (Information Technology)

Followers: 0

Kudos [?]: 4 [0], given: 4

Re: Quantity [#permalink]

19 Oct 2011, 04:27

:D:

Let current quantity in tank = X and Tank's total capacity = T
Now, X - 200 = 3T/7

So, if we know X we could solve for T.

1. Suff.
2. Tricky but Suff. Since T - 1600 = 3T/7
_________________

GMAT is an addiction and I am darn addicted

Preparation for final battel:
GMAT PREP-1 750 Q50 V41 - Oct 16 2011
GMAT PREP-2 710 Q50 V36 - Oct 22 2011 ==> Scored 50 in Quant second time in a row :-)
MGMAT---- -1 560 Q28 V39 - Oct 29 2011 ==> Left Quant half done and continued with Verbal. Happy to see Q39 :-)

My ongoing plan: http://gmatclub.com/forum/550-to-630-need-more-to-achieve-my-dream-121613.html#p989311

Appreciate by kudos !!

Re: Quantity [#permalink] 19 Oct 2011, 04:27

		Similar topics	Author	Replies	Last post
Similar Topics:		Tanks X and Y contain 500 and 200 gallons of water	uvs_mba	4	06 Nov 2006, 06:55
		If Henry were to add 5 gallons of water to a tank that is	Jcpenny	1	05 Nov 2008, 16:26
	4	Tanks X and Y contain 500 and 200 gallons	ichha148	14	26 Sep 2010, 20:04
		When 200 gallons of oil were removed from a tank	milind1979	4	25 Mar 2009, 23:05
	17	An empty fuel tank with a capacity of 200 gallons was fill	macjas	9	27 May 2012, 04:59

When 200 gallons of oil were removed from a tank

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

When 200 gallons of oil were removed from a tank

When 200 gallons of oil were removed from a tank

Main navigation

GMAT Resources

Partners

MBA Resources