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If it is true that –6 <= n <=10, which of the following must be true?

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If it is true that –6 <= n <=10, which of the following must be true? [#permalink]

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New post Updated on: 05 Nov 2017, 06:57
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If it is true that –6 <= n <=10, which of the following must be true?

A. n < 8
B. n = –6
C. n > –8
D. -10 < n < 7
E. none of the above

Originally posted by diduhussain on 05 Nov 2017, 06:44.
Last edited by Bunuel on 05 Nov 2017, 06:57, edited 1 time in total.
Edited the question and added the OA.
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Re: If it is true that –6 <= n <=10, which of the following must be true? [#permalink]

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New post 05 Nov 2017, 06:56
1
1
diduhussain wrote:
If it is true that –6 <= n <=10, which of the following must be true?

A. n < 8
B. n = –6
C. n > –8
D. -10 < n < 7
E. none of the above


Any n which is from -6 to 10, inclusive will for sure be greater than -8. So, C must be true.

Answer: C.

As for the other options:

A. n < 8 is not always true, for example, n could be 10.
B. n = –6 is not always true, for example, n could be 10.
D. -10 < n < 7 is not always true, for example, n could be 10.

P.S. When posting a question you have to provide the OA.
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Collection of Questions:
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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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Expert Post
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If it is true that –6 <= n <=10, which of the following must be true? [#permalink]

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New post 05 Nov 2017, 06:59
1
Bunuel wrote:
diduhussain wrote:
If it is true that –6 <= n <=10, which of the following must be true?

A. n < 8
B. n = –6
C. n > –8
D. -10 < n < 7
E. none of the above


Any n which is from -6 to 10, inclusive will for sure be greater than -8. So, C must be true.

Answer: C.

As for the other options:

A. n < 8 is not always true, for example, n could be 10.
B. n = –6 is not always true, for example, n could be 10.
D. -10 < n < 7 is not always true, for example, n could be 10.

P.S. When posting a question you have to provide the OA.


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_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

If it is true that –6 <= n <=10, which of the following must be true?   [#permalink] 05 Nov 2017, 06:59
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