GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 17 Oct 2019, 16:06

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

In 1979 approximately 1/3 of the 37.3 million airline passengers trave

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58402
In 1979 approximately 1/3 of the 37.3 million airline passengers trave  [#permalink]

Show Tags

New post 02 Nov 2015, 08:45
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

76% (01:54) correct 24% (02:34) wrong based on 80 sessions

HideShow timer Statistics

In 1979 approximately 1/3 of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was 1/2 the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these passengers used Logan Airport that year?

(A) 18.6
(B) 9.3
(C) 6.2
(D) 3.1
(E) 1.6

_________________
Director
Director
User avatar
G
Joined: 20 Feb 2015
Posts: 764
Concentration: Strategy, General Management
In 1979 approximately 1/3 of the 37.3 million airline passengers trave  [#permalink]

Show Tags

New post 02 Nov 2015, 11:08
number of
passengers using Kennedy airport = 37/3 =~12.43
Passengers using Miami airport = 12.43/2=~6.2
passengers using logan airport = 6.2/4 =~1.54

so E
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4007
Location: Canada
Re: In 1979 approximately 1/3 of the 37.3 million airline passengers trave  [#permalink]

Show Tags

New post 01 Jan 2019, 16:24
1
Top Contributor
Bunuel wrote:
In 1979 approximately 1/3 of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was 1/2 the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these passengers used Logan Airport that year?

(A) 18.6
(B) 9.3
(C) 6.2
(D) 3.1
(E) 1.6


This question illustrates the importance of ALWAYS checking the answer choices BEFORE getting bogged down with time-consuming calculations.
For more on this important strategy, you can watch the video below

Since the answer choices are VERY spread apart, we can be quite aggressive in our rounding and estimation.

In 1979 approximately 1/3 of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport.
Let's say that "In 1979 approximately 1/3 of the 36 million airline passengers traveling to or from the United States used Kennedy Airport. "
1/3 of 36 = 12
So, 12 million passengers used Kennedy Airport

The number of such passengers that used Miami Airport was 1/2 the number that used Kennedy Airport
12 million passengers used Kennedy Airport
1/2 of 12 million = 6 million
So, 6 million passengers used Miami Airport

The number of such passengers that used Miami Airport was 4 times the number that used Logan Airport
In other words, the number of such passengers that used Logan Airport was 1/4 the number that used Miami Airport
1/4 of 6 million = 1.5 million

So, 1.5 million passengers used Logan Airport

Check the answer choices . . . only answer choice E is close to 1.5

Answer: E

RELATED VIDEO FROM OUR COURSE

_________________
Test confidently with gmatprepnow.com
Image
GMAT Club Bot
Re: In 1979 approximately 1/3 of the 37.3 million airline passengers trave   [#permalink] 01 Jan 2019, 16:24
Display posts from previous: Sort by

In 1979 approximately 1/3 of the 37.3 million airline passengers trave

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne