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# In the diagram below, a portion of the number line is shown, with numb

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Math Expert
Joined: 02 Sep 2009
Posts: 55148
In the diagram below, a portion of the number line is shown, with numb  [#permalink]

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30 Jul 2017, 22:50
00:00

Difficulty:

35% (medium)

Question Stats:

68% (01:41) correct 32% (01:29) wrong based on 44 sessions

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In the diagram below, a portion of the number line is shown, with numbers a, b, c and d marked. If none among a, b, c and d are ‘0’, is ab < cd?

(1) ab > 0
(2) bd < 0

Attachment:

2017-07-31_0949.png [ 3.08 KiB | Viewed 768 times ]

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Director
Joined: 21 Mar 2016
Posts: 518
Re: In the diagram below, a portion of the number line is shown, with numb  [#permalink]

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31 Jul 2017, 09:44
Bunuel wrote:
In the diagram below, a portion of the number line is shown, with numbers a, b, c and d marked. If none among a, b, c and d are ‘0’, is ab < cd?

(1) ab > 0
(2) bd < 0

Attachment:
2017-07-31_0949.png

question ab < cd

stat1: two cases,,, both are positive or both negative....
if positve answer is no,, if negative the answer depends on where zero lies...
not suff..

stat2: either b or d is positive and the other is negative....
not suff to say whether ab< cd

combined...not usff

ans E...
Current Student
Joined: 11 May 2015
Posts: 34
Location: United States
Concentration: Strategy, Operations
GPA: 3.44
Re: In the diagram below, a portion of the number line is shown, with numb  [#permalink]

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31 Jul 2017, 12:46
Bunuel wrote:
In the diagram below, a portion of the number line is shown, with numbers a, b, c and d marked. If none among a, b, c and d are ‘0’, is ab < cd?

(1) ab > 0
(2) bd < 0

Attachment:
2017-07-31_0949.png

Stat A:
ab > 0
Either both positive: then ab < cd
Or both negative: then insufficient
hence A is insufficient

Stat B:
bd < 0
Hence b is negative, this means a is also negative: then insufficient as above

Ans: E
Intern
Joined: 28 Jun 2017
Posts: 27
Location: India
GMAT 1: 660 Q48 V34
In the diagram below, a portion of the number line is shown, with numb  [#permalink]

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31 Jul 2017, 13:20
Statement 1
Ab>0
Insufficient
Statement 2
Bd<0
Insufficient
Combined
Ab>0 and Bd<0
this implies d is negetive and cd is negetive
ab is positive (given)
Suufficient
Manager
Joined: 14 Jun 2016
Posts: 65
Location: India
GMAT 1: 610 Q49 V21
WE: Engineering (Manufacturing)
Re: In the diagram below, a portion of the number line is shown, with numb  [#permalink]

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31 Jul 2017, 23:55
panwala95 wrote:
Statement 1
Ab>0
Insufficient
Statement 2
Bd<0
Insufficient
Combined
Ab>0 and Bd<0
this implies d is negetive and cd is negetive
ab is positive (given)
Suufficient

Combining both the statements we are not getting any sign of C and hence can't conclude...
So the answer is E: both the statements are not sufficient.
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Re: In the diagram below, a portion of the number line is shown, with numb   [#permalink] 31 Jul 2017, 23:55
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