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M11-05

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M11-05 [#permalink]

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New post 16 Sep 2014, 00:43
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57% (00:48) correct 43% (00:49) wrong based on 108 sessions

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New post 16 Sep 2014, 00:43
Official Solution:

Statements (1) and (2) combined are insufficient. \(ABCD\) can be a rhombus but it can also be a kite-shaped figure. The diagonals of this figure form a cross, and S2 holds because of the symmetry (\(AB = BC\) and \(CD = AD\)).

Answer: E
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Re: M11-05 [#permalink]

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New post 14 Jun 2016, 22:53
Bunuel wrote:
Official Solution:

Statements (1) and (2) combined are insufficient. \(ABCD\) can be a rhombus but it can also be a kite-shaped figure. The diagonals of this figure form a cross, and S2 holds because of the symmetry (\(AB = BC\) and \(CD = AD\)).

Answer: E

Bunuel HI , ABCD can also be a square,correct me if i'm wrong

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Re: M11-05 [#permalink]

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New post 15 Jun 2016, 02:39
sharma123 wrote:
Bunuel wrote:
Official Solution:

Statements (1) and (2) combined are insufficient. \(ABCD\) can be a rhombus but it can also be a kite-shaped figure. The diagonals of this figure form a cross, and S2 holds because of the symmetry (\(AB = BC\) and \(CD = AD\)).

Answer: E

Bunuel HI , ABCD can also be a square,correct me if i'm wrong


Yes, it can be a square too.
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Re M11-05 [#permalink]

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New post 06 Jul 2016, 03:26
I think this is a poor-quality question and I don't agree with the explanation. I dont understand how can 2nd statement be true?

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Re: M11-05 [#permalink]

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New post 17 Aug 2016, 08:49
A kite-shaped figure is a funny explanation.

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Re: M11-05 [#permalink]

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New post 27 Sep 2016, 08:00
Bunuel IF the condition 1 read that the AC is a perpendicular bisector of BD, would that have been enough to conclude that the figure was a rhombus ( considering square is also a special type of rhombus ) ? Will the diagonals of the a kite shaped figure also bisect each other at 90 degrees ?

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New post 07 Oct 2016, 04:54
This is a HIGH quality question,i agree with the explanation.

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Re: M11-05 [#permalink]

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New post 09 Nov 2016, 04:23
Bunuel wrote:
sharma123 wrote:
Bunuel wrote:
Official Solution:

Statements (1) and (2) combined are insufficient. \(ABCD\) can be a rhombus but it can also be a kite-shaped figure. The diagonals of this figure form a cross, and S2 holds because of the symmetry (\(AB = BC\) and \(CD = AD\)).

Answer: E

Bunuel HI , ABCD can also be a square,correct me if i'm wrong


Yes, it can be a square too.




Isn't it true that every square is a in fact a rhombus?

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Re: M11-05 [#permalink]

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New post 11 Nov 2016, 05:51
I don't understand how the first statement could be true...

How can two sides of a quadrilateral be perpendicular if they don't share any vertex? (AC and BD)

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New post 21 Dec 2016, 05:42
Is it sufficient for statement 1 IF IT SAYS AC and BD are perpendicular bisectors of each other?

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New post 08 Jun 2017, 10:04
I think this is a poor-quality question and the explanation isn't clear enough, please elaborate. hi,

In a rhombus diagonals bisect each other at 90 degree. in statement one we are told that the diagonals bisect each other at 90 degree. then it must be a rhombus. even a kite shaped figure is a rhombus. correct me if im wrong.

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New post 08 Jun 2017, 15:08
kanikas1 wrote:
I think this is a poor-quality question and the explanation isn't clear enough, please elaborate. hi,

In a rhombus diagonals bisect each other at 90 degree. in statement one we are told that the diagonals bisect each other at 90 degree. then it must be a rhombus. even a kite shaped figure is a rhombus. correct me if im wrong.


Yes, you are wrong.

RHOMBUS - a quadrilateral in which all four sides are congruent.
KITE - a quadrilateral in which each pair of consecutive sides are congruent, but opposite sides are not congruent.
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: M11-05 [#permalink]

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New post 03 Aug 2017, 08:12
Those haven't understood the solution. Pls refer to the below link

https://www.google.co.in/url?sa=i&rct=j ... 9443458898

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Re: M11-05   [#permalink] 03 Aug 2017, 08:12
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