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655-705 (Hard)|   Algebra|      
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Bunuel
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If abc ≠ 0 and a/b = b/c, does b = c ? (1) b/c = c/a (2) a = 1 02 May 2019, 01:18
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Difficulty:

65% (hard)

Question Stats:

57% (02:03) correct 43% (02:19) wrong based on 130 sessions

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If abc ≠ 0 and a/b = b/c, does b = c ?

(1) b/c = c/a
(2) a = 1
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A
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If abc ≠ 0 and a/b = b/c, does b = c ? (1) b/c = c/a (2) a = 1 02 May 2019, 03:47
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Bunuel
If abc ≠ 0 and a/b = b/c, does b = c ?

(1) b/c = c/a
(2) a = 1
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a/b = b/c, does b = c
a*c=b^2
#1
b*a=c^2
a=c^2/b
or say
c^3=b^3
sufficient
#2
a=1
insufficeint
as b=√c
IMO A
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