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LalaB
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30% of major airline companies equip their planes with 23 Oct 2011, 08:13
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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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B
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30% of major airline companies equip their planes with 28 Dec 2015, 04:57
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LalaB
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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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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ashimasood
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30% of major airline companies equip their planes with 23 Oct 2011, 08:45
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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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preetimishra
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30% of major airline companies equip their planes with 23 Oct 2011, 10:27
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B
as it can be a subset of 70%. hence the maximum possibility.
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AkshdeepS
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30% of major airline companies equip their planes with 25 May 2018, 04:40
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LalaB
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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30% can be a sub set of 70%, but not other way round.

Therefore 30%.

B
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30% of major airline companies equip their planes with 15 Oct 2019, 12:28
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LalaB
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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The greatest possible would be lowest of the two individual values.
No matter how much you increase the pie, you cannot make it more than 30.
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Smriti5645
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30% of major airline companies equip their planes with 18 Jun 2024, 14:12
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Could someone please explain how it’s calculated as 30% ? like I don’t know the logic behind this that’s why couldn’t get it,
Thanks.

Posted from my mobile device
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30% of major airline companies equip their planes with 20 Jun 2024, 00:01
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Smriti5645
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%

Could someone please explain how it’s calculated as 30% ? like I don’t know the logic behind this that’s why couldn’t get it,
Thanks.
Show more
­How can the probability that both Event A and Event B occur be higher than the individual probabilities of each happening? Therefore, the probability of both events occurring cannot exceed 0.3 (the lower of the two percentages, compared to 70% offering snacks). Can it be exactly 30%? Yes, if all companies with internet also offer snacks, then the companies that offer both will indeed be exactly 30%.
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30% of major airline companies equip their planes with 18 Nov 2024, 06:32
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• 30% of airlines equip planes with wireless internet.

• 70% of airlines offer free on-board snacks.


We are looking for the greatest overlap, which occurs when all airlines with wireless internet also offer free snacks.

Key Observation


If all the airlines with wireless internet (30%) also offer free snacks (70%), the greatest possible percentage of overlap will simply be:

Overlap=Percentage with wireless internet=30%.

Answer: B
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