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What were the gross revenues from ticket sales for a certain

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What were the gross revenues from ticket sales for a certain [#permalink] New post 31 Dec 2013, 06:18
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The Official Guide For GMAT® Quantitative Review, 2ND Edition

What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week.
(2) Gross revenues during the third week were $2.0 million less than during the first week.

Data Sufficiency
Question: 12
Category: Arithmetic Arithmetic operations
Page: 153
Difficulty: 650


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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 31 Dec 2013, 06:18
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What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week --> {first} = {second} - $1.5 million. Not sufficient.

(2) Gross revenues during the third week were $2.0 million less than during the first week --> {first} = {third} - $2 million. Not sufficient.

(1)+(2) We cannot solve the two equations we have. Not sufficient.

Answer: E.
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 01 Jan 2014, 09:53
Bunuel wrote:
The Official Guide For GMAT® Quantitative Review, 2ND Edition

What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week.
(2) Gross revenues during the third week were $2.0 million less than during the first week.

Data Sufficiency
Question: 12
Category: Arithmetic Arithmetic operations
Page: 153
Difficulty: 650


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Always confuse with the questions of Bunuel, because i am always asking myself "there is a trap there is a trap..."!

Well in this one there is a nice trap which is the first answer choice.

(1) Gross revenues during the second week were $1.5 million less than during the first week - With this one, we still do not know the first week revenues (could be 1.6 million or 1597 billion)

Equation: X * $1.5 million (X= first week revenues)

(2) Gross revenues during the third week were $2.0 million less than during the first week. - Same as for statement one. We do not know the gross revenues of the first week...

Equation: X * $2.0 million (X= first week revenues)

Therefore the answer is E.
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 01 Jan 2014, 11:19
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The Qs is to find out Gross rev sales of second week of a film...let's call it w2. We have to find a certain value.

1. St. 1 says that in mathematical terms.. w2= w1-1.5(mn).. This is insufficient as we don't know anything about w1 revenues. It can be anything. No info is provided in Qs stem also. So ans. may be BCE

2. St. 2 says that in mathematical terms..w3=w1-2(mn)..This is insufficient as we don't know anything about w1 or w3 revenues. They can be anything. No info is provided in Qs stem also. So ans. may be CE

Combining St1 and St2.. there are 3 variables and we don't know any other co-relation among them.. so, no certain value can be found, hence IMO ans. is E.


Bunuel wrote:
The Official Guide For GMAT® Quantitative Review, 2ND Edition

What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week.
(2) Gross revenues during the third week were $2.0 million less than during the first week.

Data Sufficiency
Question: 12
Category: Arithmetic Arithmetic operations
Page: 153
Difficulty: 650


GMAT Club is introducing a new project: The Official Guide For GMAT® Quantitative Review, 2ND Edition - Quantitative Questions Project

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1. Please provide your solutions to the questions;
2. Please vote for the best solutions by pressing Kudos button;
3. Please vote for the questions themselves by pressing Kudos button;
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 01 Jan 2014, 21:15
Simply, itis E!
Do not confuse yourself with extra calculations.
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 01 Jan 2014, 23:37
What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week.
(2) Gross revenues during the third week were $2.0 million less than during the first week.

Sol:
Let the revenue during the 2nd week in which it was shown be X. We need to find X


From St 1 we have the Revenue in the first week was which X+1.5
Not sufficient
From St 2 we have the revenue in 3rd week was 2M US$ less. Not sufficient.
We don't know what was the revenue in first week.

Combining we get that
Revenue in 1st week: x +1.5
Revenue in 2nd week: x
and Revenue in 3rd week: x +1.5- 2-----> x- 0.5

Clearly we cannot get the value of x.

Ans E
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 02 Jan 2014, 00:21
Ans is (E) since both statements mention revenue of first week, which we do not know.
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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 05 Jan 2014, 10:39
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SOLUTION

What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week --> {first} = {second} - $1.5 million. Not sufficient.

(2) Gross revenues during the third week were $2.0 million less than during the first week --> {first} = {third} - $2 million. Not sufficient.

(1)+(2) We cannot solve the two equations we have. Not sufficient.

Answer: E.
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RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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

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Re: What were the gross revenues from ticket sales for a certain [#permalink] New post 10 Jan 2014, 10:24
Bunuel wrote:
The Official Guide For GMAT® Quantitative Review, 2ND Edition

What were the gross revenues from ticket sales for a certain film during the second week in which it was shown?

(1) Gross revenues during the second week were $1.5 million less than during the first week.
(2) Gross revenues during the third week were $2.0 million less than during the first week.



Basically they want to know what x2*y2 = TR2, where all 2's denote "second week", x denotes tickets sold and y denots price per ticket.

1) uses different variables (x1, y1 and TR1), and only gives us a relation between TR1 and TR2.. Clearly insufficient
2) uses different variables (x3, y3 and TR3), and only gives us a relation between TR1 and TR3, clearly insufficient.

1 + 2, we know absolutely nothing about x2 or y2, we're only given some weak relationships among the revenues for three consecutive weeks.

So the answer is E
Re: What were the gross revenues from ticket sales for a certain   [#permalink] 10 Jan 2014, 10:24
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