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Bad Weather

by Dean Jones » Sat Oct 22, 2011 2:11 am
Hi Guys,

I am having difficulty in solving the below mentioned problem.

Please help.

Mayville Airport and Newcomb Airport have the same number of flight departures each day. Mayville Airport experiences 26 departure delays per 100 flights, while Newcomb Airport experiences 20 departure delays per 100 flights. When delays caused by bad weather are disregarded, Mayville Airport has 5 fewer departure delays per 100 flights than Newcomb Airport does. Which of the following conclusions is best supported by the information given above?

"¢ Bad weather causes a greater number of departure delays at Mayville Airport than at Newcomb Airport.
"¢ On average, the weather at Mayville Airport is worse than it is at Newcomb Airport.
"¢ Mechanical problems cause a greater number of delays at Newcomb Airport than at Mayville Airport.
"¢ The fleet of airplanes leaving from Newcomb Airport is better equipped to handle inclement weather than the fleet
of airplanes leaving from Mayville Airport.
"¢ Mayville Airport experiences a greater number of arrival delays per 100 flights than Newcomb Airport does.

OA after some discussion
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by vaibhavgupta » Sat Oct 22, 2011 3:08 am
IMO A

C talked about mechanical problems
D no evidence on such
E " Mayville Airport has 5 fewer departure delays per 100 flights than Newcomb Airport does."
this lines makes E wrong.

I had Kept B but felt that it is not been supported really.

Whts the OA?
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by mankey » Sat Oct 22, 2011 4:35 am
I will go for A. What is the OA?
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by krishnakumar.ks » Sat Oct 22, 2011 4:58 am
I would go with A.

B is really close but it only says the weather is worse. How worse or is it really worse enough to create delays in flight departures is not known.
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by rohit_gmat » Sat Oct 22, 2011 9:49 pm
IMO A
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by Cheese12 » Sat Oct 22, 2011 10:01 pm
IMO : A...i was first stuck between A and C ....C talks about mechanical problems which wasnt mentioned in the paragraph... so eliminated it.
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by Dean Jones » Sun Oct 23, 2011 10:54 am
OA is A. I was thinking that the actual number of delays are not given so how can we talk of greater number of delays. In the question only a percentage (delays per 100) is given. Can anyone please explain.
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by krishnakumar.ks » Sun Oct 23, 2011 11:59 am
Dean Jones wrote:OA is A. I was thinking that the actual number of delays are not given so how can we talk of greater number of delays. In the question only a percentage (delays per 100) is given. Can anyone please explain.
Assume that only 100 flights departure from both the airports and proceed. Assumption here is not harmful because we are assuming one of the exact possibilities.
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by David@VeritasPrep » Sun Oct 23, 2011 5:50 pm
You can use the number per 100 flights to guide you.

Mayville Airport experiences 26 delays per 100 flights and Newcomb 20.

But if you take away the weather delays Newcomb now has 5 more delays per 100 than Mayville. So that means 11 more flights per 100 are delayed by weather at Mayville.

Dean Jones - I think the bit of information you have to integrate is from the first sentence, "Mayville Airport and Newcomb Airport have the same number of flight departures each day." They have the same number of flights, so the flights per 100 can be used, since they each have the same number of flights per day.

You can even do as krishnakumar.ks has suggested and hypothetically say that they only have a total of 100 flights in a day. The actual number does not matter, only because it is the same.
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