It is currently 06 Jul 2020, 19:21
My Tests

Close

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
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.

If the ratio of a to b is 6 to 7, which of the following tw

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 11958
Followers: 252

Kudos [?]: 2983 [1] , given: 11204

CAT Tests
If the ratio of a to b is 6 to 7, which of the following tw [#permalink] New post 26 Jun 2020, 09:35
1
This post received
KUDOS
Expert's post
00:00

Question Stats:

85% (00:34) correct 14% (-1:-35) wrong based on 7 sessions
If the ratio of a to b is 6 to 7, which of the following two answer choices are true ?

A. \(a=36,b=49\)

B. \(a=30,b=35\)

C. \(a=14,b=12\)

D. \(a=7,b=8\)

E. \(a=3, b=\frac{7}{2}\)

F. \(a=0,b=\frac{6}{7}\)
[Reveal] Spoiler: OA

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 11958
Followers: 252

Kudos [?]: 2983 [0], given: 11204

CAT Tests
Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink] New post 26 Jun 2020, 09:36
Expert's post
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

1 KUDOS received
Intern
Intern
Joined: 08 Aug 2019
Posts: 12
Location: United States
Followers: 0

Kudos [?]: 15 [1] , given: 16

Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink] New post 27 Jun 2020, 01:40
1
This post received
KUDOS
Let's calculate \(\frac{a}{b}\) for all the answer choices and check which ones are equal to \(\frac{6}{7}\)

A) \(\frac{36}{49}\) --> No

B) \(\frac{30}{35}\) = \(\frac{6}{7}\) --> Yes

C) \(\frac{14}{12}\) = \(\frac{7}{6}\) --> No

D) \(\frac{7}{8}\) --> No

E) \(\frac{3}{(7/2)}\) = 3 * \(\frac{2}{7}\) = \(\frac{6}{7}\) --> Yes

F) 0 --> No
1 KUDOS received
MyGuru Representative
User avatar
Joined: 09 Apr 2020
Posts: 35
Followers: 0

Kudos [?]: 32 [1] , given: 2

Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink] New post 27 Jun 2020, 19:01
1
This post received
KUDOS
Expert's post
Carcass wrote:
If the ratio of a to b is 6 to 7, which of the following two answer choices are true ?

A. \(a=36,b=49\)

B. \(a=30,b=35\)

C. \(a=14,b=12\)

D. \(a=7,b=8\)

E. \(a=3, b=\frac{7}{2}\)

F. \(a=0,b=\frac{6}{7}\)


All we need to do for this problem is find answer choices in which the both parts of the ratio are scaled up (or down) by the same factor.

This is true for Choice B, since \(6*5 = 30\) and \(7*5 = 35\).
It's also true for Choice E, since \(6*\frac{1}{2}=3\) and \(7*\frac{1}{2}=\frac{7}{2}\)

Answers: B and E
_________________

Steve Markofsky


Senior Online GMAT & GRE Tutor, MyGuru
www.myguruedge.com



Sign up today for a free 30-minute online GRE tutoring session!


Like us on Facebook
Watch us on YouTube
Follow us on Twitter
Follow us on Linkedin

Re: If the ratio of a to b is 6 to 7, which of the following tw   [#permalink] 27 Jun 2020, 19:01
Display posts from previous: Sort by

If the ratio of a to b is 6 to 7, which of the following tw

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.