Some part of the 50% solution of acid was replaced with the

Oldest

Best Reply

Author

Message

TAGS:

Intern

Joined: 27 Sep 2008

Posts: 14

Followers: 0

Kudos [?]: 53 [3] , given: 0

Some part of the 50% solution of acid was replaced with the [#permalink]

03 Oct 2008, 23:17

This post received
KUDOS

Some part of the 50% solution of acid was replaced with the equal amount of 30% solution of acid. As a result, 40% solution of acid was obtained. What part of the original solution was replaced?

* \frac{1}{5}
* \frac{1}{4}
* \frac{1}{2}
* \frac{3}{4}
* \frac{4}{5}

Manager

Joined: 27 Sep 2008

Posts: 80

Followers: 1

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

Re: Math Problem on Solutions [#permalink]

03 Oct 2008, 23:27

7-t49897?hilit=made

the answer is (C) - 1/2

Intern

Joined: 27 Sep 2008

Posts: 14

Followers: 0

Kudos [?]: 53 [2] , given: 0

Re: Math Problem on Solutions [#permalink]

04 Oct 2008, 02:57

This post received
KUDOS

would someone please give an explanation to the answer for the problem. Thanks

Manager

Joined: 27 Sep 2008

Posts: 80

Followers: 1

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

Re: Math Problem on Solutions [#permalink]

04 Oct 2008, 03:00

This post received
KUDOS

ast wrote:

would someone please give an explanation to the answer for the problem. Thanks

In the old solution you had two parts of the 50% solution (out of possible two) - in the new solution the you have only one part out of two - meaning you replaced 50% of the solution or 1/2.

Attachments

Drawing Number 1.GIF [ 2.56 KiB | Viewed 294 times ]

Re: Math Problem on Solutions [#permalink] 04 Oct 2008, 03:00

		Similar topics	Author	Replies	Last post
Similar Topics:		Some part of the 50% solution of acid was replaced with the	kdhong	1	23 Nov 2005, 20:33
		Some part of 50% solution of acid was replaced with 30%	mitul	1	28 Oct 2006, 10:06
	4	Some part of the 50% solution of acid was replaced with the	Hermione	31	18 Nov 2006, 20:56
		some of the %50 intensity red paint is replaced with %25	hsk	3	05 Jun 2007, 15:15
		Some part of the 50% solution of acid was replaced with the	duuuma	6	21 Oct 2008, 11:41

Some part of the 50% solution of acid was replaced with the

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

Some part of the 50% solution of acid was replaced with the

Some part of the 50% solution of acid was replaced with the

Main navigation

GMAT Resources

Partners

MBA Resources