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A diamond has a rating of 10 on Moh's Scale of Hardness

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viciss
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A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 May 2015, 09:18
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A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

A) quartz and about four points more than the hardness of
B) quartz and about four points more than that of
C) how hard quartz is and about four points more than the hardness of
D) the hardness of quartz and about four point more than the hardness of
E) quartz and about four points above
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E
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A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 May 2015, 09:23
Hi everyone, would like your 2 cents on the above question.
In the official ans (E), i feel that the comparison is incorrectly made between rating 10 and quartz necause if you look at the sentence it says - rating of 10, 3 pts above quartz (shouldnt it be - 3 pts above the rating of quartz or, 3 pts above that of quartz ?)
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 May 2015, 20:54
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viciss wrote:
Hi everyone, would like your 2 cents on the above question.
In the official ans (E), i feel that the comparison is incorrectly made between rating 10 and quartz necause if you look at the sentence it says - rating of 10, 3 pts above quartz (shouldnt it be - 3 pts above the rating of quartz or, 3 pts above that of quartz ?)


Hi viciss,

True cause the 3 pts above refers to the hardness value and not literally 3 pts above. The clause should figure "hardness" somewhere.

IMO D. Experts pls help.

Dom.
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 Jul 2016, 01:30
dominicraj wrote:
viciss wrote:
Hi everyone, would like your 2 cents on the above question.
In the official ans (E), i feel that the comparison is incorrectly made between rating 10 and quartz necause if you look at the sentence it says - rating of 10, 3 pts above quartz (shouldnt it be - 3 pts above the rating of quartz or, 3 pts above that of quartz ?)


Hi viciss,

True cause the 3 pts above refers to the hardness value and not literally 3 pts above. The clause should figure "hardness" somewhere.

IMO D. Experts pls help.

Dom.


IMO too it should be 'D' as it rightly compares the hardness of the materials mentioned.
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A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 Jul 2016, 02:01
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ynk wrote:
dominicraj wrote:
viciss wrote:
Hi everyone, would like your 2 cents on the above question.
In the official ans (E), i feel that the comparison is incorrectly made between rating 10 and quartz necause if you look at the sentence it says - rating of 10, 3 pts above quartz (shouldnt it be - 3 pts above the rating of quartz or, 3 pts above that of quartz ?)


Hi viciss,

True cause the 3 pts above refers to the hardness value and not literally 3 pts above. The clause should figure "hardness" somewhere.

IMO D. Experts pls help.

Dom.


IMO too it should be 'D' as it rightly compares the hardness of the materials mentioned.


The correct answer is E as it compares the rating of the hardness of different materials.

Rating could be above or below few points not the hardness. I mean it is wrong to say that the hardness of 3 points above something.

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A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   17 Jul 2016, 13:07
IMO
The comparison is among the diamond, quartz, and steel, and not their hardness.

if it were hardness of the diamond the answer would have been D
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   27 Jun 2017, 05:54
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viciss wrote:
A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

A) quartz and about four points more than the hardness of
B) quartz and about four points more than that of
C) how hard quartz is and about four points more than the hardness of
D) the hardness of quartz and about four point more than the hardness of
E) quartz and about four points above


Although, I answered (D), I can now see that the answer is (E).

The subject of the main sentence is "diamond".

--> diamond has a rating of 10
--> diamond is 3 points above quartz
--> diamond is 4 points above steel
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   27 Jun 2017, 14:03
following the process of establishing logic and correct grammars to eliminate options that contain errors is not easy.
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   27 Jun 2017, 21:56
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viciss wrote:
A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

A) quartz and about four points more than the hardness of
B) quartz and about four points more than that of
C) how hard quartz is and about four points more than the hardness of
D) the hardness of quartz and about four point more than the hardness of
E) quartz and about four points above


will go with E ..
in D rating is compared with hardness....so not logical ..
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   27 Jun 2017, 22:18
A) quartz and about four points more than the hardness of - INCORRECT- diamond being compared to quartz and hardness of steel -
B) quartz and about four points more than that of - INCORRECT as points or steel is repeated by mentioning 'that of'
C) how hard quartz is and about four points more than the hardness of - INCORRECT as number compared to quality of hardness
D) the hardness of quartz and about four point more than the hardness of - INCORRECT as number is compared to hardness
E) quartz and about four points above - CORRECT as the comparison is right

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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   27 Jun 2017, 22:25
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A) quartz and about four points more than the hardness of - INCORRECT- diamond being compared to quartz and hardness of steel -
B) quartz and about four points more than that of - INCORRECT as points or steel is repeated by mentioning 'that of'
C) how hard quartz is and about four points more than the hardness of - INCORRECT as number compared to quality of hardness
D) the hardness of quartz and about four point more than the hardness of - INCORRECT as number is compared to hardness
E) quartz and about four points above - CORRECT as the comparison is right

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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   11 Mar 2019, 10:50
E is the right answer. When comparing points on a scale ‘above’ is the correct term.
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   13 Mar 2019, 23:43
A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

This is a tricky question, it makes us think that the point of comparison here is amongst hardness of diamond, quartz and steel but the question is actually comparing the rating.

I arrived at option E picking a clue from the original sentence(highlighted). It is quite clear that the correct option should compare the rating. Three points above X and about 4 points above Y also maintains a parallel structure.

E) quartz and about four points above
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   30 Mar 2019, 21:26
viciss wrote:
A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

A) quartz and about four points more than the hardness of
B) quartz and about four points more than that of
C) how hard quartz is and about four points more than the hardness of
D) the hardness of quartz and about four point more than the hardness of
E) quartz and about four points above


I am not clear by studying the above explanations why E is correct.

If we consider rating, then the sentence structure may be...

The rating of a diamond is 10, three points above that of quartz and about four points more than that of steel.

Would anyone explain elaborately why E is correct?
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   31 Mar 2019, 16:31
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Rashed12 wrote:
viciss wrote:
A diamond has a rating of 10 on Moh's Scale of Hardness, three points above quartz and about four points more than the hardness of steel.

A) quartz and about four points more than the hardness of
B) quartz and about four points more than that of
C) how hard quartz is and about four points more than the hardness of
D) the hardness of quartz and about four point more than the hardness of
E) quartz and about four points above


I am not clear by studying the above explanations why E is correct.

If we consider rating, then the sentence structure may be...

The rating of a diamond is 10, three points above that of quartz and about four points more than that of steel.

Would anyone explain elaborately why E is correct?


Rashed12
Option-E on expanding becomes - three points above quartz (on Moh's Scale of Hardness) and about four points above steel (on Moh's Scale of Hardness).

Since ''on Moh's Scale of Hardness" is mentioned in the first part of the sentence, it is not necessary to repeat.
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   06 May 2023, 05:05
In the official ans (E), i feel that the comparison is incorrectly made between rating 10 and quartz because if you look at the sentence it says - rating of 10, 3 pts above quartz (shouldnt it be - 3 pts above the rating of quartz or, 3 pts above that of quartz ?)
pls help
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   07 May 2023, 08:36
KarishmaB
Is E really a correct comparison?

“3 points above Quartz”
How can we compare rating with quartz?

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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   08 May 2023, 01:13
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samagra21 wrote:
KarishmaB
Is E really a correct comparison?

“3 points above Quartz”
How can we compare rating with quartz?

Posted from my mobile device



Diamond has a rating of 10, quartz has a rating of 7 and steel has a rating of 6.

You can compare their ratings but certainly not their "hardness." What does a hardness of 10 even mean? The hardness is given a rating of 10 on the scale.
In this context, diamond is 3 points above quartz also makes sense because the way we view a scale, we can imagine diamond written next to 10 and quartz written next to 7. So we can say that diamond is 3 points above quartz and four points above steel.
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink] New post   08 May 2023, 02:08
KarishmaB wrote:
samagra21 wrote:
KarishmaB
Is E really a correct comparison?

“3 points above Quartz”
How can we compare rating with quartz?

Posted from my mobile device



Diamond has a rating of 10, quartz has a rating of 7 and steel has a rating of 6.

You can compare their ratings but certainly not their "hardness." What does a hardness of 10 even mean? The hardness is given a rating of 10 on the scale.
In this context, diamond is 3 points above quartz also makes sense because the way we view a scale, we can imagine diamond written next to 10 and quartz written next to 7. So we can say that diamond is 3 points above quartz and four points above steel.


I’ve done these experiments of Mohr and Rockwell hardness in engineering lab. But as per gmat rules I’m finding it exceptional to compare rating with “quartz” or “steel”
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Re: A diamond has a rating of 10 on Moh's Scale of Hardness [#permalink]
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