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If s is an integer between 0 and 10, is t less than the aver

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If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post Updated on: 15 Jul 2014, 09:03
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If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

(1) t is closer to 10 on the number line than it is to s.

(2) t is 5 times as large as s.

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Originally posted by mshrek on 15 Jul 2014, 08:58.
Last edited by Bunuel on 15 Jul 2014, 09:03, edited 1 time in total.
Renamed the topic and edited the question.
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If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post 15 Jul 2014, 09:41
1
2
If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

----0--s---(average)---10--- The average of s and 10 is halfway between s and 10.
The question asks whether t is in green area.

(1) t is closer to 10 on the number line than it is to s --> t is not in the green area. So, the answer to the question is NO. Sufficient.

(2) t is 5 times as large as s. If s=1 and t=5, then the answer is YES but if s=2 and t=10, then the answer is NO. Not sufficient.

Answer: A.
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Re: If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post 15 Jul 2014, 09:44
1
Bunuel wrote:
If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

----0--s---(average)---10--- The average of s and 10 is halfway between s and 10.
The question asks whether t is in green area.

(1) t is closer to 10 on the number line than it is to s --> t is not in the green area. So, the answer to the question is NO. Sufficient.

(2) t is 5 times as large as s. If s=1 and t=5, then the answer is YES but if s=2 and t=10, then the answer is NO. Not sufficient.

Answer: B.


Similar questions to practice:
if-x-is-a-positive-number-less-than-10-is-z-greater-than-th-167734.html
if-x-is-a-positive-number-less-than-10-is-z-less-than-the-131322.html
if-a-is-a-positive-number-less-than-10-is-c-greater-than-105650.html
if-y-is-a-negative-number-greater-than-8-is-x-greater-than-95138.html

Hope it helps.
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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: If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post 15 Jul 2014, 12:36
Bunuel wrote:
Bunuel wrote:
If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

----0--s---(average)---10--- The average of s and 10 is halfway between s and 10.
The question asks whether t is in green area.

(1) t is closer to 10 on the number line than it is to s --> t is not in the green area. So, the answer to the question is NO. Sufficient.

(2) t is 5 times as large as s. If s=1 and t=5, then the answer is YES but if s=2 and t=10, then the answer is NO. Not sufficient.

Answer: B.


Similar questions to practice:
if-x-is-a-positive-number-less-than-10-is-z-greater-than-th-167734.html
if-x-is-a-positive-number-less-than-10-is-z-less-than-the-131322.html
if-a-is-a-positive-number-less-than-10-is-c-greater-than-105650.html
if-y-is-a-negative-number-greater-than-8-is-x-greater-than-95138.html

Hope it helps.


Thanks for the suggestion. I tried to solve algebraically and somehow ended up rejecting option A :shock:
The graphical approach is pretty neat and simple :)
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Re: If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post 15 Jul 2014, 22:52
mshrek wrote:
Bunuel wrote:
Bunuel wrote:
If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

----0--s---(average)---10--- The average of s and 10 is halfway between s and 10.
The question asks whether t is in green area.

(1) t is closer to 10 on the number line than it is to s --> t is not in the green area. So, the answer to the question is NO. Sufficient.

(2) t is 5 times as large as s. If s=1 and t=5, then the answer is YES but if s=2 and t=10, then the answer is NO. Not sufficient.

Answer: B.


Similar questions to practice:
if-x-is-a-positive-number-less-than-10-is-z-greater-than-th-167734.html
if-x-is-a-positive-number-less-than-10-is-z-less-than-the-131322.html
if-a-is-a-positive-number-less-than-10-is-c-greater-than-105650.html
if-y-is-a-negative-number-greater-than-8-is-x-greater-than-95138.html

Hope it helps.


Thanks for the suggestion. I tried to solve algebraically and somehow ended up rejecting option A :shock:
The graphical approach is pretty neat and simple :)


Here is a post that discusses visual approaches: http://www.veritasprep.com/blog/2013/08 ... mber-line/
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Re: If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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New post 18 Jul 2014, 06:02
Bunuel wrote:
If s is an integer between 0 and 10, is t less than the average (arithmetic mean) of s and 10?

----0--s---(average)---10--- The average of s and 10 is halfway between s and 10.
The question asks whether t is in green area.

(1) t is closer to 10 on the number line than it is to s --> t is not in the green area. So, the answer to the question is NO. Sufficient.

(2) t is 5 times as large as s. If s=1 and t=5, then the answer is YES but if s=2 and t=10, then the answer is NO. Not sufficient.

Answer: A.



I think, everyone should check out how you've solved sufficiency for Statement 1. Clear demonstration of the 'Gmat eye'.
Brilliant Bunnel. Thank you!
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Re: If s is an integer between 0 and 10, is t less than the aver  [#permalink]

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