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  # Of the 200 employees in a certain company, 25 percent will
  
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  Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  26 Feb 2012, 15:29
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  Of the 200 employees in a certain company, 25 percent will be relocated to City X and the remaining 75 percent will be relocated to City Y. However, 40 percent of the employees prefer City Y and 60 percent prefer City X. What is the highest possible number of employees who will be relocated to the city they prefer?
  
  (A) 65
  (B) 100
  (C) 115
  (D) 130
  (E) 135
  
  Just can't get this right. Any idea how to solve please?
  [Reveal] Spoiler: OA
  
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  Re: Relocation [#permalink]
  
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  26 Feb 2012, 15:50
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  enigma123 wrote:
  Of the 200 employees in a certain company, 25 percent will be relocated to City X and the remaining 75 percent will be relocated to City Y. However, 40 percent of the employees prefer City Y and 60 percent prefer City X. What is the highest possible number of employees who will be relocated to the city they prefer?
  (A) 65
  (B) 100
  (C) 115
  (D) 130
  (E) 135
  
  Just can't get this right. Any idea how to solve please?
  
  120 prefer X (Group 1);
  80 prefer Y (Group 2).
  
  City Y needs 150 people: let all 80 who prefer Y (entire Group 2) be relocated there, the rest 70 will be those who prefer X from Group 1;
  City X needs 50 people: 120-70=50 from Group 1 will be relocated to X, which they prefer.
  
  So, the highest possible number of employees who will be relocated to the city they prefer is 80+50=130.
  
  Answer: D.
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  14 Jun 2013, 05:28
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  Re: Relocation [#permalink]
  
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  24 Jun 2013, 23:42
  Bunuel wrote:
  enigma123 wrote:
  Of the 200 employees in a certain company, 25 percent will be relocated to City X and the remaining 75 percent will be relocated to City Y. However, 40 percent of the employees prefer City Y and 60 percent prefer City X. What is the highest possible number of employees who will be relocated to the city they prefer?
  (A) 65
  (B) 100
  (C) 115
  (D) 130
  (E) 135
  
  Just can't get this right. Any idea how to solve please?
  
  120 prefer X (Group 1);
  80 prefer Y (Group 2).
  
  City Y needs 150 people: let all 80 who prefer Y (entire Group 2) be relocated there, the rest 70 will be those who prefer X from Group 1;
  City X needs 50 people: 120-70=50 from Group 1 will be relocated to X, which they prefer.
  
  So, the highest possible number of employees who will be relocated to the city they prefer is 80+50=130.
  
  Answer: D.
  
  Hi Bunnel,
  
  Will the minimum number of satisfied employees be 30?
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  Re: Relocation [#permalink]
  
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  25 Jun 2013, 02:38
  cumulonimbus wrote:
  Bunuel wrote:
  enigma123 wrote:
  Of the 200 employees in a certain company, 25 percent will be relocated to City X and the remaining 75 percent will be relocated to City Y. However, 40 percent of the employees prefer City Y and 60 percent prefer City X. What is the highest possible number of employees who will be relocated to the city they prefer?
  (A) 65
  (B) 100
  (C) 115
  (D) 130
  (E) 135
  
  Just can't get this right. Any idea how to solve please?
  
  120 prefer X (Group 1);
  80 prefer Y (Group 2).
  
  City Y needs 150 people: let all 80 who prefer Y (entire Group 2) be relocated there, the rest 70 will be those who prefer X from Group 1;
  City X needs 50 people: 120-70=50 from Group 1 will be relocated to X, which they prefer.
  
  So, the highest possible number of employees who will be relocated to the city they prefer is 80+50=130.
  
  Answer: D.
  
  Hi Bunnel,
  
  Will the minimum number of satisfied employees be 30?
  
  _______________
  
  Yes, absolutely.
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  04 Oct 2013, 01:34
  i know the min/max concept is pretty basic but conceptually can one use overlapping sets/Venn diagram to solve this and other min/max problems? I'm not sure how to arrive at the min value (maybe someone could provide their input) but to solve for the max i think you can set-up two sets of two overlapping sets.
  
  For display purposes i have found a sample overlapping set.
  
  The first set would represent the max value for City X and the second set would be for City Y. Circle A represents the total amount of people relocating to City X and the Circle B represents the total that prefer City X. To maximize the number of people that are relocated to their preferred city you would have to have the highest possible value from Circle A in the overlapping set. So for City X, circle A, the overlapping area and circle B would contain the following amounts: 0,50,120.
  
  For City Y the amounts would be 70,80,0. The combined overlapping sets would equal the answer 130.
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  04 Oct 2013, 12:03
  enigma123 wrote:
  Of the 200 employees in a certain company, 25 percent will be relocated to City X and the remaining 75 percent will be relocated to City Y. However, 40 percent of the employees prefer City Y and 60 percent prefer City X. What is the highest possible number of employees who will be relocated to the city they prefer?
  
  (A) 65
  (B) 100
  (C) 115
  (D) 130
  (E) 135
  
  The best way to solve questions containing four different items is to draw a matrix box. As per the question:
  Total employees relocated to X = 25% of 200 = 50
  Total employees relocated to Y = 75% of 200 = 150
  Total employees who prefer city X = 60% of 200 = 120
  Total employees who prefer city Y = 40% of 200 = 80
  
  This can be represented in a matrix box as shown below:
  Attachment:
  
  Matrix_1.png [ 2.51 KiB | Viewed 3332 times ]
  
  So we need to maximize the cells marked with green i.e.
  employees who prefer city X and gets relocated to city X + employees who prefer city Y and gets relocated to city Y.
  
  Maximum possible value of Prefer X - Relocate X cell is 50. Then the only possible value for Prefer X - Relocate Y cell is 70 because the total employees who prefer city X is 120.
  
  As Prefer X - Relocate X cell is 50, so Prefer Y - Relocate X cell has to be 0 because total employees actually relocated to city X is 50. And if Prefer Y - Relocate X is 0 then Prefer Y - Relocate Y has to be 80 because total employees who preferred city Y is 80.
  
  So now the completed matrix box looks like this:
  Attachment:
  
  Matrix_2.png [ 2.85 KiB | Viewed 3334 times ]
  
  So total sum of green cells (employees who will be relocated to the city they prefer) = 50 + 80 = 130
  Hence the correct answer is D
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  15 Oct 2014, 20:44
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  Hi Bunnel,
  
  Will the minimum number of satisfied employees be 30?
  
  It will come up in this way....
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  Matrix_1.png [ 3.61 KiB | Viewed 2397 times ]
  
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  Re: Of the 200 employees in a certain company, 25 percent will [#permalink]
  
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  Re: Of the 200 employees in a certain company, 25 percent will   [#permalink] 11 Mar 2017, 03:50
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