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30% of major airline companies equip their planes with

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Senior Manager
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30% of major airline companies equip their planes with  [#permalink]

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New post 23 Oct 2011, 08:13
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A
B
C
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E

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  5% (low)

Question Stats:

84% (00:28) correct 16% (00:37) wrong based on 445 sessions

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30% of major airline companies equip their planes with wireless internet access. 70% of major airlines offer passengers free on-board snacks. What is the greatest possible percentage of major airline companies that offer both wireless internet and free on-board snacks?

A. 21%
B. 30%
C. 40%
D. 50%
E. 70%

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Re: airline companies  [#permalink]

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New post 23 Oct 2011, 08:45
Is the ans b- 30% ??

As greatest has been asked, all 30% can fall into the 70% category but the reverse isn't true.
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Re: airline companies  [#permalink]

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New post 23 Oct 2011, 10:27
B
as it can be a subset of 70%. hence the maximum possibility.
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Re: 30% of major airline companies equip their planes with  [#permalink]

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New post 28 Dec 2015, 04:57
1
LalaB wrote:
30% of major airline companies equip their planes with wireless internet access. 70% of major airlines offer passengers free on-board snacks. What is the greatest possible percentage of major airline companies that offer both wireless internet and free on-board snacks?

A. 21%
B. 30%
C. 40%
D. 50%
E. 70%


30% of airline companies equip their planes with wireless internet access
70% of major airlines offer passengers free on-board snacks

We need to find the greatest percentage that offer both.

The number will be greatest when all the companies that offer wireless internet also offer free snacks.
Hence 30%

Option B
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Re: 30% of major airline companies equip their planes with  [#permalink]

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New post 25 May 2018, 04:40
LalaB wrote:
30% of major airline companies equip their planes with wireless internet access. 70% of major airlines offer passengers free on-board snacks. What is the greatest possible percentage of major airline companies that offer both wireless internet and free on-board snacks?

A. 21%
B. 30%
C. 40%
D. 50%
E. 70%


30% can be a sub set of 70%, but not other way round.

Therefore 30%.

B

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Re: 30% of major airline companies equip their planes with &nbs [#permalink] 25 May 2018, 04:40
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