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 Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

01 Dec 2012, 06:28

2

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

35% (medium)

Question Stats:

81% (01:27) correct
19% (01:30) wrong based on 98 sessions

HideShow timer Statistics

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

Re: At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

01 Dec 2012, 06:44

2

This post received KUDOS

manukumar wrote:

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

1)8 2)10 3)20 4)40 5)80

I tried this as below:

a:b:c = 3:4:5

a:b= 3:4

doubled: a:b = 2* 3:4 = 3:2

halved a:c = (1/2)*3:5 = 3:10

a:c/a:b = (3/10)/ (3/2) = 6/30

given c =40

substituting, we get b = 8.

Pls let me know the basic approach on this.

A to B = 3 : 4

So, on doubling we get 6 : 4

A to C = 3 : 5

So, on halving we get 1.5 : 5 or 3 : 10 or 6 : 20

So final ratio = 6 : 4 : 20.

If 20x = 40

4x = 8

Hence, answer is A
_________________

Did you find this post helpful?... Please let me know through the Kudos button.

Re: At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

17 Feb 2017, 11:26

Ratio of A:B is originally 3:4. Then this ratio is doubled and we have \(\frac{3}{2}\) * 2 = \(\frac{6}{4}\) Ratio of A:C is originally 3:5. Then this ratio is halved so we have \(\frac{3}{5}\) * \(\frac{1}{2}\) = \(\frac{3}{10}\).

In order to compare the two ratio we must express the common term (in this case A) in the same quantity. Thus we multiply the second ratio (\(\frac{3}{10}\)) for 2 and we get \(\frac{6}{20}\)

So now the new score ratio of team A, B and C is 6:4:20. If we divide the score of team C by the ratio for team C we get the multiplier (in this case is 2). Finally by applying the multiplier to B we get 8.

Re: At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

12 Mar 2017, 10:49

I like making it in a table:

A:B:C 3:4:5 then A:B doubled 6:4:? then A:C halved 3:?:10 let's make a common ration for all 3: 6:4:20 and since C earned 40 points: 12:8:40 B is 8 Answer is A (8)

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

1)8 2)10 3)20 4)40 5)80

We are given that the original ratio of A : B : C = 3x : 4x : 5x.

After the ratio of A to B doubles and the ratio of A to C is halved, we have:

A/B = 6x/4x

AND

A/C = 3x/10x

Since we need term A to be the same in both ratios, we can multiply our second ratio by 2/2 and we have:

A/C = 6x/20x

Now the ratio of A : B : C = 6x : 4x : 20x

Since team C had a final of 40 points, we have:

20x = 40

x = 2

So, the final score of team B was 4 x 2 = 8.

Answer: A
_________________

Jeffery Miller Head of GMAT Instruction

GMAT Quant Self-Study Course 500+ lessons 3000+ practice problems 800+ HD solutions

Re: At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

07 Oct 2017, 02:28

1

This post received KUDOS

Hello Moderators,

I got this question as a part of daily practice questions from my workbook. Do you think it would be a good Idea to hide the highlighted portion of the question? The highlighted text is giving away a possible approach that can be taken to solve the question. Hiding this will help users when they attempt it using Timer.

Thanking you in advance!

manukumar wrote:

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

I got this question as a part of daily practice questions from my workbook. Do you think it would be a good Idea to hide the highlighted portion of the question? The highlighted text is giving away a possible approach that can be taken to solve the question. Hiding this will help users when they attempt it using Timer.

Thanking you in advance!

manukumar wrote:

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

Concentration: General Management, Entrepreneurship

GPA: 3.8

WE: Engineering (Energy and Utilities)

Re: At a certain stage of a soccer tournament, the score ratio of teams A, [#permalink]

Show Tags

07 Oct 2017, 03:21

manukumar wrote:

At a certain stage of a soccer tournament, the score ratio of teams A, B and C was 3:4:5. Eventually, the score ratio of A to B has doubled while the score ratio of A to C has halved. If the final score of team C was 40, what was the final score of team B?

Version 8.1 of the WordPress for Android app is now available, with some great enhancements to publishing: background media uploading. Adding images to a post or page? Now...

Post today is short and sweet for my MBA batchmates! We survived Foundations term, and tomorrow's the start of our Term 1! I'm sharing my pre-MBA notes...

“Keep your head down, and work hard. Don’t attract any attention. You should be grateful to be here.” Why do we keep quiet? Being an immigrant is a constant...