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If a=b/c and b=a/c, then c=

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Xin Cho
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If a=b/c and b=a/c, then c= [#permalink] New post   20 Jul 2018, 13:15
00:00
A
B
C
D
E

Difficulty:

55% (hard)

Question Stats:

75% (01:25) correct 25% (00:35) wrong based on 8 sessions
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If a=b/c and b=a/c, then c=

A. b/a
B. a/b
C. -1
D. a
E. -b

Source: Nova's GMAT Prep Course

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C
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CounterSniper
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Re: If a=b/c and b=a/c, then c= [#permalink] New post   20 Jul 2018, 15:04
Xin Cho wrote:
If a=b/c and b=a/c, then c=

A. b/a
B. a/b
C. -1
D. a
E. -b

Source: Nova's GMAT Prep Course


ac=a/c
c^2=1
c=+-1
C
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Xin Cho
Manager
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Joined: 29 May 2016
Posts: 102
Own Kudos [?]: 135 [0]
Given Kudos: 178
Location: Czech Republic
Concentration: Finance, Strategy
Schools: Cambridge "21 (A) Instead Sept 20 Intake (A$) LBS '22 (WD)
GMAT 1: 700 Q47 V38
GPA: 3.94
WE:Corporate Finance (Investment Banking)
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Re: If a=b/c and b=a/c, then c= [#permalink] New post   20 Jul 2018, 23:54
CounterSniper wrote:
Xin Cho wrote:
If a=b/c and b=a/c, then c=

A. b/a
B. a/b
C. -1
D. a
E. -b

Source: Nova's GMAT Prep Course


ac=a/c
c^2=1
c=+-1
C


Could you please explain why A. or B. is not possible solution? 1. a=b/c => ca=b => c=a/b AND 2 b=a/c => cb=a => cb/a.
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Re: If a=b/c and b=a/c, then c= [#permalink] New post   21 Jul 2018, 00:32
Expert Reply
Xin Cho wrote:
If a=b/c and b=a/c, then c=

A. b/a
B. a/b
C. -1
D. a
E. -b

Source: Nova's GMAT Prep Course


Discussed here: if-a-b-c-and-b-a-c-then-c-241769.html Please continue discussion there.


TOPIC IS LOCKED AND ARCHIVED.

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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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Thank you for understanding, and happy exploring!
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Re: If a=b/c and b=a/c, then c= [#permalink]
21 Jul 2018, 00:32
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