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#### 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
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TAGS: Founder  Joined: 18 Apr 2015
Posts: 12104
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Kudos [?]: 3025  , given: 11294

If the ratio of a to b is 6 to 7, which of the following tw [#permalink]
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Expert's post 00:00

Question Stats: 80% (00:35) correct 20% (-1:-17) wrong based on 10 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

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Founder  Joined: 18 Apr 2015
Posts: 12104
Followers: 256

Kudos [?]: 3025 , given: 11294

Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink]
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!

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GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests. Intern Joined: 08 Aug 2019
Posts: 28
Location: United States
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Kudos [?]: 24  , given: 19

Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink]
1
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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 MyGuru Representative Joined: 09 Apr 2020
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Kudos [?]: 32  , given: 2

Re: If the ratio of a to b is 6 to 7, which of the following tw [#permalink]
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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 $$7*\frac{1}{2}=\frac{7}{2}$$

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Steve Markofsky Re: If the ratio of a to b is 6 to 7, which of the following tw   [#permalink] 27 Jun 2020, 19:01
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