In 1987 sinusitis was the most common chronic medical : GMAT Critical Reasoning (CR)
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

It is currently 07 Dec 2016, 16:25
GMAT Club Tests

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

In 1987 sinusitis was the most common chronic medical

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

Hide Tags

3 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 28 Aug 2010
Posts: 259
Followers: 6

Kudos [?]: 524 [3] , given: 11

In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 06 Dec 2010, 12:32
3
This post received
KUDOS
12
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

62% (02:25) correct 38% (01:29) wrong based on 662 sessions

HideShow timer Statistics

In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.
[Reveal] Spoiler: OA

_________________

Verbal:new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html
-------------------------------------------------------------------------------------------------
Ajit

Request Expert Reply
If you have any questions
you can ask an expert
New!
VP
VP
avatar
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1353
Followers: 17

Kudos [?]: 236 [0], given: 10

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 07 Dec 2010, 03:11
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?

(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000. - Not mentioned anywhere in the para. Eliminate.
(B) Arthritis will be the most common chronic medical condition in 2000. - Eliminate
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000. - Hold.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987. - Eliminate.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000. - Chances of suffering from Arthritis or High BP might increase as the average age of the population increases. But this dosen't mean that the population will suffer from these two ailments too. - Eliminate

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


From the two statements marked in the argument one can infer C. Also,consider a sample of people of different ages. As the ages increase the average increases.Hence statement C is true.

I believe this will help.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Manager
Manager
avatar
Joined: 23 Sep 2009
Posts: 151
Followers: 1

Kudos [?]: 94 [0], given: 37

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 07 Dec 2010, 14:38
1
This post was
BOOKMARKED
I vote for C since it is more logical than any other choices.
Between 87 to 2000 ppl having sinus will grow and their average age will also increase.
IMO C
_________________

Thanks,
VP

Expert Post
7 KUDOS received
Veritas Prep GMAT Instructor
User avatar
Joined: 16 Oct 2010
Posts: 7072
Location: Pune, India
Followers: 2086

Kudos [?]: 13291 [7] , given: 222

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 08 Dec 2010, 11:39
7
This post received
KUDOS
Expert's post
1
This post was
BOOKMARKED
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


One important point you need to understand to understand this question is the increase in average age of a population.
Lets say average age of US population is 40 yrs. (Add ages of all people and divide by the number of people). The average age need not increase with time (it can even reduce e.g. when life expectancy decreases; people live shorter lives; lots of new babies are born) If average age increases to 50 yrs, it means people are living longer lives or not many new babies are being born or both (a problem being faced by much of the developed world today)
So when we say average life increased, it is probably because there are more aged people.

Premises:
- In 1987 sinusitis most common chronic condition followed by arthritis and high blood pressure
- More arthritis and high blood pressure with age
- Incidence of sinusitis is the same for people of all ages
- Average age will increase between 1987 and 2000.

Let's refresh what we said about conclusion questions - should be implied from the argument and should give no new data.

(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
With increase in average age, we cannot say this. It is possible that other two become more common.

(B) Arthritis will be the most common chronic medical condition in 2000.
Definitely no reason to pick Arthritis out of the two - BP and Arthritis so no need to even think about it.

(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
Since incidence of sinusitis is the same for all ages, we can conclude that the average age of a person suffering from Sinusitis is the same as the average age of the population. Since average age of population will increase, average age of people suffering from Sinusitis will also increase.

(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
Sinusitis does not depend on age so cannot be concluded.

(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
No reason to conclude this.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199

Veritas Prep Reviews

Manager
Manager
User avatar
Joined: 01 Nov 2010
Posts: 181
Location: Zürich, Switzerland
Followers: 2

Kudos [?]: 38 [0], given: 20

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 09 Dec 2010, 01:28
Premise:- The average age of the United States population will increase between 1987 and 2000.

What above statement means- With increased avearage age, people live longer.
What it does not mean-There will be more elderly people overall. This is since there might be more babies born in the same period although deaths among adults are deferred, causing equalizer effect to the entire age group.

Thus, one can not conclude- "There will be more cases of old age diseases (Arthitis or high blood pressuire) compared to the all age disease- Sinusitis".
One can colclude- The overall increase in living age will result into increase in the number people with all age group disease which is Sinusitis.


Answer:- C
Verbal Forum Moderator
Verbal Forum Moderator
avatar
Joined: 31 Jan 2010
Posts: 499
WE 1: 4 years Tech
Followers: 12

Kudos [?]: 137 [0], given: 149

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 15 Dec 2010, 02:45
VeritasPrepKarishma wrote:
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


One important point you need to understand to understand this question is the increase in average age of a population.
Lets say average age of US population is 40 yrs. (Add ages of all people and divide by the number of people). The average age need not increase with time (it can even reduce e.g. when life expectancy decreases; people live shorter lives; lots of new babies are born) If average age increases to 50 yrs, it means people are living longer lives or not many new babies are being born or both (a problem being faced by much of the developed world today)
So when we say average life increased, it is probably because there are more aged people.


(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
No reason to conclude this.

Karishma You said there are more aged people.
So the majority of the population is aged and the incidence of arthritis and high BP increases with age.Isnt this enough to conclude that A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
_________________

My Post Invites Discussions not answers
Try to give back something to the Forum.I want your explanations, right now !
Please let me know your opinion about the Chandigarh Gmat Centrehttp://gmatclub.com/forum/gmat-experience-at-chandigarh-india-centre-111830.html

Expert Post
2 KUDOS received
Veritas Prep GMAT Instructor
User avatar
Joined: 16 Oct 2010
Posts: 7072
Location: Pune, India
Followers: 2086

Kudos [?]: 13291 [2] , given: 222

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 15 Dec 2010, 04:42
2
This post received
KUDOS
Expert's post
mundasingh123 wrote:
VeritasPrepKarishma wrote:
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


One important point you need to understand to understand this question is the increase in average age of a population.
Lets say average age of US population is 40 yrs. (Add ages of all people and divide by the number of people). The average age need not increase with time (it can even reduce e.g. when life expectancy decreases; people live shorter lives; lots of new babies are born) If average age increases to 50 yrs, it means people are living longer lives or not many new babies are being born or both (a problem being faced by much of the developed world today)
So when we say average life increased, it is probably because there are more aged people.


(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
No reason to conclude this.

Karishma You said there are more aged people.
So the majority of the population is aged and the incidence of arthritis and high BP increases with age.Isnt this enough to conclude that A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.



No. We do not know the current incidence of sinusitis, arthritis and high BP. The 'average age increases' implies either people live longer than before or no. of people who are aged are more than before or both, but it doesn't imply that majority of people are aged. 'Majority' means more than half. We have no data to conclude that more than half people will be aged. We also have no data to conclude that majority of people will have one of the given diseases e.g.

Sinusitis incidence - 10 in 100 people
Arthritis - 3 in 100 aged people
High BP - 2 in 100 aged people
When the population becomes more aged:
e.g. Sinusitis incidence - 10 in 100
Arthritis - 5 in 100 aged people
High BP - 3 in 100 aged people

Not every one who is aged, has to have one of these diseases.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199

Veritas Prep Reviews

Verbal Forum Moderator
Verbal Forum Moderator
avatar
Joined: 31 Jan 2010
Posts: 499
WE 1: 4 years Tech
Followers: 12

Kudos [?]: 137 [0], given: 149

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 15 Dec 2010, 07:13
Thanks karishma for the help
_________________

My Post Invites Discussions not answers
Try to give back something to the Forum.I want your explanations, right now !
Please let me know your opinion about the Chandigarh Gmat Centrehttp://gmatclub.com/forum/gmat-experience-at-chandigarh-india-centre-111830.html

Retired Moderator
User avatar
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1712
Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Followers: 95

Kudos [?]: 888 [0], given: 109

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 15 Dec 2010, 12:58
+1 C
_________________

"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."

My Integrated Reasoning Logbook / Diary: http://gmatclub.com/forum/my-ir-logbook-diary-133264.html

GMAT Club Premium Membership - big benefits and savings

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 01 Oct 2013
Posts: 10439
Followers: 886

Kudos [?]: 191 [0], given: 0

Premium Member
Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 23 Feb 2015, 21:49
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Intern
Intern
avatar
Joined: 06 May 2015
Posts: 28
Location: United States
Concentration: Operations, Other
GPA: 3.39
Followers: 0

Kudos [?]: 9 [0], given: 315

In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 26 Sep 2015, 13:55
not enough reason to choose C
the incidence rate is same for sinoc at all ages
It DOES NOT mean it avg age of people suff from sinoc WILL INCREASE !
lets check, 100 people of different ages, all have same probability to catch sinoc (it does not mean ALL OF THEM will get sinoc for sure). What if only one person aged 20 yrs is infected with sinoc and others are okay ? Will it SURELY INCREASE the avg age of people attacked with sinoc (option C) ???
Expert Post
Veritas Prep GMAT Instructor
User avatar
Joined: 16 Oct 2010
Posts: 7072
Location: Pune, India
Followers: 2086

Kudos [?]: 13291 [0], given: 222

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 28 Sep 2015, 01:41
oishik wrote:
not enough reason to choose C
the incidence rate is same for sinoc at all ages
It DOES NOT mean it avg age of people suff from sinoc WILL INCREASE !
lets check, 100 people of different ages, all have same probability to catch sinoc (it does not mean ALL OF THEM will get sinoc for sure). What if only one person aged 20 yrs is infected with sinoc and others are okay ? Will it SURELY INCREASE the avg age of people attacked with sinoc (option C) ???



"the incidence rate for sinusitis is the same for people of all ages." implies that the % of people who get it will be the same in all age ranges.
So if 1% of 20 yr olds get it, only 1% of 30 year olds will get it and only 1% of 3 yr olds will get it. So people who get sinusitis are a small but proportionate sample of the entire population. Since the representation of each age group is the same as in the actual population,

Average age of people with sinusitis = Average age of the population.

If average age of the population goes up, the average age of people with sinusitis will go up.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199

Veritas Prep Reviews

Manager
Manager
avatar
Joined: 22 Sep 2015
Posts: 118
Followers: 3

Kudos [?]: 29 [0], given: 136

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 09 Jul 2016, 17:17
VeritasPrepKarishma wrote:
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


One important point you need to understand to understand this question is the increase in average age of a population.
Lets say average age of US population is 40 yrs. (Add ages of all people and divide by the number of people). The average age need not increase with time (it can even reduce e.g. when life expectancy decreases; people live shorter lives; lots of new babies are born) If average age increases to 50 yrs, it means people are living longer lives or not many new babies are being born or both (a problem being faced by much of the developed world today)
So when we say average life increased, it is probably because there are more aged people.

Premises:
- In 1987 sinusitis most common chronic condition followed by arthritis and high blood pressure
- More arthritis and high blood pressure with age
- Incidence of sinusitis is the same for people of all ages
- Average age will increase between 1987 and 2000.

Let's refresh what we said about conclusion questions - should be implied from the argument and should give no new data.

(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
With increase in average age, we cannot say this. It is possible that other two become more common.

(B) Arthritis will be the most common chronic medical condition in 2000.
Definitely no reason to pick Arthritis out of the two - BP and Arthritis so no need to even think about it.

(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
Since incidence of sinusitis is the same for all ages, we can conclude that the average age of a person suffering from Sinusitis is the same as the average age of the population. Since average age of population will increase, average age of people suffering from Sinusitis will also increase.

(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
Sinusitis does not depend on age so cannot be concluded.

(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
No reason to conclude this.



could someone explain why its not B? The premise says that arthritis is the 2nd most common overall. Arthritis becomes more common as age increases. So if the avg age of population will increase, won't arthritis increase bc it will happen more often?

so if 60% of 60 year old have it now, 70% of 70 year olds and 80% of 80 year olds, if there will be more 80 year olds, doesn't that mean the % will go up because it skews to the higher end?
Expert Post
Veritas Prep GMAT Instructor
User avatar
Joined: 16 Oct 2010
Posts: 7072
Location: Pune, India
Followers: 2086

Kudos [?]: 13291 [0], given: 222

Re: In 1987 sinusitis was the most common chronic medical [#permalink]

Show Tags

New post 11 Jul 2016, 22:38
nycgirl212 wrote:
VeritasPrepKarishma wrote:
ajit257 wrote:
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

I am having some difficulty in drawing conclusion questions. Please can some provide some helpful pointers to tackle such questions.. thanks.


One important point you need to understand to understand this question is the increase in average age of a population.
Lets say average age of US population is 40 yrs. (Add ages of all people and divide by the number of people). The average age need not increase with time (it can even reduce e.g. when life expectancy decreases; people live shorter lives; lots of new babies are born) If average age increases to 50 yrs, it means people are living longer lives or not many new babies are being born or both (a problem being faced by much of the developed world today)
So when we say average life increased, it is probably because there are more aged people.

Premises:
- In 1987 sinusitis most common chronic condition followed by arthritis and high blood pressure
- More arthritis and high blood pressure with age
- Incidence of sinusitis is the same for people of all ages
- Average age will increase between 1987 and 2000.

Let's refresh what we said about conclusion questions - should be implied from the argument and should give no new data.

(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
With increase in average age, we cannot say this. It is possible that other two become more common.

(B) Arthritis will be the most common chronic medical condition in 2000.
Definitely no reason to pick Arthritis out of the two - BP and Arthritis so no need to even think about it.

(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
Since incidence of sinusitis is the same for all ages, we can conclude that the average age of a person suffering from Sinusitis is the same as the average age of the population. Since average age of population will increase, average age of people suffering from Sinusitis will also increase.

(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
Sinusitis does not depend on age so cannot be concluded.

(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
No reason to conclude this.



could someone explain why its not B? The premise says that arthritis is the 2nd most common overall. Arthritis becomes more common as age increases. So if the avg age of population will increase, won't arthritis increase bc it will happen more often?

so if 60% of 60 year old have it now, 70% of 70 year olds and 80% of 80 year olds, if there will be more 80 year olds, doesn't that mean the % will go up because it skews to the higher end?


In ranking:
Sinusitis
Arthritis
High BP

Incidences of both, Arthritis and high BP increase with age. What if high BP incidence increases much more with age?

For arthritis: 60% of 60 year old have it now, 70% of 70 year olds and 80% of 80 year olds
For high BP: 50% of 60 year old have it now, 75% of 70 year olds and 95% of 80 year olds

We don't know the rate at which the incidence increases in the two diseases. So option (B) is not NECESSARILY true.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199

Veritas Prep Reviews

Re: In 1987 sinusitis was the most common chronic medical   [#permalink] 11 Jul 2016, 22:38
    Similar topics Author Replies Last post
Similar
Topics:
The arctic fox was once the most common fox on the Northern Island. Harley1980 12 02 Sep 2015, 03:59
12 In 1994, the most common eye-related disease from which Americans suff itzmyzone911 9 21 Apr 2015, 20:54
270 GMAT Critical Reasoning: 10 Most Common Question Types dentobizz 11 31 Oct 2013, 01:05
9 In 1987 sinusitis was the most common chronic medical PUNEETSCHDV 6 24 Aug 2012, 08:26
4 Because most hospitals suffer a chronic undersupply of GetThisDone 5 28 Apr 2012, 19:40
Display posts from previous: Sort by

In 1987 sinusitis was the most common chronic medical

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


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.