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# of the 50 researchers in a workgroup, 40 percent will be

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of the 50 researchers in a workgroup, 40 percent will be [#permalink]

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25 Feb 2008, 02:28
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

214. of the 50 researchers in a workgroup, 40 percent will be assigned to team A and the remaining 60 percent to team B. However, 70 percent of the researchers prefer team A and 30% prefer team B. What is the lowest possiple number of researchers who will NOT be assigned to the team they prefer?

A.15
B.17
C.20
D.25
E.30

Hi friends, I am confused with this, it wasted me more than 3 minutes but still be wrong! I need your help!
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Re: 214. sets-definitely confused! [#permalink]

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25 Feb 2008, 02:48
Quote:
214. of the 50 researchers in a workgroup, 40 percent will be assigned to team A and the remaining 60 percent to team B. However, 70 percent of the researchers prefer team A and 30% prefer team B. What is the lowest possiple number of researchers who will NOT be assigned to the team they prefer?

A.15
B.17
C.20
D.25
E.30

Answer is A. 15 researchers:

Max no. of team members:
Team A Team B

20(40% of 50) 30(60% of 50)

Preferred teams for researcher

Team A Team B

35(70% of 50) 15(60% of 50)

So all 15 people who want to be in team B can be allocated team B, but only 20 of the 35 people who want to be in team A can be allocated team A. So the min no. of people who will not get their team of choice = 35-20 = 15
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Re: 214. sets-definitely confused! [#permalink]

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25 Feb 2008, 02:52
Is the OA -A?

40 percent(20 Researchers) will be assigned to team A and the remaining 60 percent(30 Res) to team B. However, 70 percent(35) of the researchers prefer team A and 30%(15) prefer team B. What is the lowest possiple number of researchers who will NOT be assigned to the team they prefer?

least number of people => least of the deltas so 15

regards,
Pras
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SVP
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Re: 214. sets-definitely confused! [#permalink]

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25 Feb 2008, 06:11
i get A as well. 35 prefer A, however, only 20 make it. 15 prefer B, but B has 30 people. So, 15 of those who wanted A wont get it, but all those who want B will get B
Manager
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Re: 214. sets-definitely confused! [#permalink]

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25 Feb 2008, 19:42
sondenso wrote:
OA is A

if 20ppl are assigned to A (40% of 50ppl) and 35ppl want to be in A (70% of 50ppl) then 15ppl will not get where they want to be. (35-15). do the same for B team. the smallest wins!!
hope this helps.
Re: 214. sets-definitely confused!   [#permalink] 25 Feb 2008, 19:42
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# of the 50 researchers in a workgroup, 40 percent will be

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