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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

How many days after the purchase of Product X does its stand [#permalink]

Show Tags

18 Mar 2012, 04:25

5

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

25% (medium)

Question Stats:

69% (01:09) correct
31% (01:07) wrong based on 192 sessions

HideShow timer Statistics

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997 --> warranty period can vary from 29 days (the least possible warranty: from 31st of January to 1st of March) to 89 days (the greatest possible warranty: from 1st of January to 31st of March). Not sufficient.

(2) When Santos purchased Product X in May 1997, the warranty expired in May 1997 --> warranty period can vary from 1 day (the least possible warranty: from 1st of May to 2nd of May) to 30 days (the greatest possible warranty: from 1st of May to 31st of May). Not sufficient.

(1)+(2) Intersection of the warranty periods from (1) and (2) is 29 and 30 days, still two possible answers. Not sufficient.

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

31 Jul 2013, 23:16

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.) (1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

have a doubt in this ..plz correct me

In Statement 1: Maximum validity is from 1st January to 31st March Minimum validity is from 31st January to 1st March ( WE ARE SURE that 31st march as well as 1st march is not an expiry date HERE)

= (31 + 28 + 31) = 90 days = (1 + 28 + 1) = 30 days

In Statement 2: (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

Maximum possible validity of X is from 1st May to 31st may = 30 days( here we ARE ASSUMING THAT 31st is an expiry date according to the question so we cnnt include 31st day ) Minimum possible validity of X is from 1st May to 2nd May = 1 day

so the inetrsection of (1-30 ) and (30 - 90) is 30 ??

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

01 Aug 2013, 01:16

1

This post received KUDOS

nevagivup wrote:

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.) (1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

have a doubt in this ..plz correct me

In Statement 1: Maximum validity is from 1st January to 31st March Minimum validity is from 31st January to 1st March ( WE ARE SURE that 31st march as well as 1st march is not an expiry date HERE)

= (31 + 28 + 31) = 90 days = (1 + 28 + 1) = 30 days

In Statement 2: (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

Maximum possible validity of X is from 1st May to 31st may = 30 days( here we ARE ASSUMING THAT 31st is an expiry date according to the question so we cnnt include 31st day ) Minimum possible validity of X is from 1st May to 2nd May = 1 day so the inetrsection of (1-30 ) and (30 - 90) is 30 ??

The highlighted part is not entirely correct. It will be (30+28+31) = 89 days, as you can't include 1st of January.[The question states after the day of purchase]

The minimum will occur and the no of days would be : 28+1 = 29 days.

Thus, the range of validity for the warranty : \(29\leq{w}\leq{89}\)

Similarly, from the second statement, we would have \(1\leq{w}\leq{30}\)

Combining both, we have : w=29 or w=30. Insufficient.

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

01 Aug 2013, 01:51

i am still little confused ..

y didnt we use the maximum validity upto 1st april because anyways its mentioned that it is not expired in Mach and question asked upto how long it can stand ...( 31st march is not an xpiry date : Should nOt we include that day wen it can be used upto )

like in secnd statemnt we are considering 31st of may ( product x can be usEd on 31st may )

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

01 Aug 2013, 01:57

1

This post received KUDOS

nevagivup wrote:

i am still little confused ..

y didnt we use the maximum validity upto 1st april because anyways its mentioned that it is not expired in Mach and question asked upto how long it can stand ...( 31st march is not an xpiry date : Should nOt we include that day wen it can be used upto )

like in secnd statemnt we are considering 31st of may ( product x can be usEd on 31st may )

The maximum validity from F.S 1 :

Purchased on 1st January --> The validity starts from 2nd January. Validity didn't expire until March(The date can not cross over to the month of April) --> 31st March, i.e. the warranty was valid till 31st March.

The total no of days from 2nd Jan to 31st March = 30(Jan)+28(Feb)+31(Mar) = 89 days.

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

08 Aug 2013, 23:01

Im not sure

The first statement gives the range "did not expire until March 1997, doesn't that imply that it cant be nay lesser than March, thiugh it can be greater than March?

mau5 wrote:

nevagivup wrote:

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.) (1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

have a doubt in this ..plz correct me

In Statement 1: Maximum validity is from 1st January to 31st March Minimum validity is from 31st January to 1st March ( WE ARE SURE that 31st march as well as 1st march is not an expiry date HERE)

= (31 + 28 + 31) = 90 days = (1 + 28 + 1) = 30 days

In Statement 2: (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

Maximum possible validity of X is from 1st May to 31st may = 30 days( here we ARE ASSUMING THAT 31st is an expiry date according to the question so we cnnt include 31st day ) Minimum possible validity of X is from 1st May to 2nd May = 1 day so the inetrsection of (1-30 ) and (30 - 90) is 30 ??

The highlighted part is not entirely correct. It will be (30+28+31) = 89 days, as you can't include 1st of January.[The question states after the day of purchase]

The minimum will occur and the no of days would be : 28+1 = 29 days.

Thus, the range of validity for the warranty : \(29\leq{w}\leq{89}\)

Similarly, from the second statement, we would have \(1\leq{w}\leq{30}\)

Combining both, we have : w=29 or w=30. Insufficient.

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

08 Aug 2013, 23:14

1

This post received KUDOS

Shibs wrote:

Im not sure

The first statement gives the range "did not expire until March 1997, doesn't that imply that it cant be nay lesser than March, thiugh it can be greater than March?

mau5 wrote:

nevagivup wrote:

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.) (1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

have a doubt in this ..plz correct me

In Statement 1: Maximum validity is from 1st January to 31st March Minimum validity is from 31st January to 1st March ( WE ARE SURE that 31st march as well as 1st march is not an expiry date HERE)

= (31 + 28 + 31) = 90 days = (1 + 28 + 1) = 30 days

In Statement 2: (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

Maximum possible validity of X is from 1st May to 31st may = 30 days( here we ARE ASSUMING THAT 31st is an expiry date according to the question so we cnnt include 31st day ) Minimum possible validity of X is from 1st May to 2nd May = 1 day so the inetrsection of (1-30 ) and (30 - 90) is 30 ??

The highlighted part is not entirely correct. It will be (30+28+31) = 89 days, as you can't include 1st of January.[The question states after the day of purchase]

The minimum will occur and the no of days would be : 28+1 = 29 days.

Thus, the range of validity for the warranty : \(29\leq{w}\leq{89}\)

Similarly, from the second statement, we would have \(1\leq{w}\leq{30}\)

Combining both, we have : w=29 or w=30. Insufficient.

Hope this helps.

No. It only means that it can be valid till the last day of March and DOESN'T run into the month of April.

If I say this ticket is valid until tomorrow, will it be valid after that? It won't.

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

08 Aug 2013, 23:43

Stiv wrote:

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997. (2) When Santos purchased Product X in May 1997, the warranty expired in May 1997.

If someone can explain, I would be grateful.

Yeah it does but why 29 days its not a leap year no?

Concentration: General Management, International Business

GMAT 1: 650 Q48 V31

WE: Information Technology (Telecommunications)

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

11 Nov 2013, 22:43

Bunuel wrote:

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997 --> warranty period can vary from 29 days (the least possible warranty: from 31st of January to 1st of March) to 89 days (the greatest possible warranty: from 1st of January to 31st of March). Not sufficient.

(2) When Santos purchased Product X in May 1997, the warranty expired in May 1997 --> warranty period can vary from 1 day (the least possible warranty: from 1st of May to 2nd of May) to 30 days (the greatest possible warranty: from 1st of May to 31st of May). Not sufficient.

(1)+(2) Intersection of the warranty periods from (1) and (2) is 29 and 30 days, still two possible answers. Not sufficient.

Answer: E.

Hope it's clear.

Hello Bunuel,

I have a query on this solution...

I think the most confusing part here is not the calculation but understanding the meaning of 'until' From your explanation it seems when you say until 1st of March, you are not including 1st of march while counting days.... 29 days (the least possible warranty: from 31st of January to 1st of March) = 1 + 28 + 0 = 19 89 days (the greatest possible warranty: from 1st of January to 31st of March) = 31 + 28 + 30 = 89

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

12 Jul 2015, 19:35

Apologies if this has already been discussed elsewhere, however I wonder how the question would have differed if it was mentioned as (1997 is a "Leap Year") ?

Re: How many days after the purchase of Product X does its stand [#permalink]

Show Tags

08 Oct 2016, 03:53

Hello from the GMAT Club BumpBot!

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.
_________________

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997 --> warranty period can vary from 29 days (the least possible warranty: from 31st of January to 1st of March) to 89 days (the greatest possible warranty: from 1st of January to 31st of March). Not sufficient.

(2) When Santos purchased Product X in May 1997, the warranty expired in May 1997 --> warranty period can vary from 1 day (the least possible warranty: from 1st of May to 2nd of May) to 30 days (the greatest possible warranty: from 1st of May to 31st of May). Not sufficient.

(1)+(2) Intersection of the warranty periods from (1) and (2) is 29 and 30 days, still two possible answers. Not sufficient.

Answer: E.

Hope it's clear.

Hi - why are we finding ranges (highest difference in number of days or lowest difference in number of days)

Why are values like 2 weeks or 1 week or 20 days warranty not answer choices potentially

How many days after the purchase of Product X does its standard warranty expire? (1997 is not a leap year.)

(1) When Mark purchased Product X in January 1997, the warranty did not expire until March 1997 --> warranty period can vary from 29 days (the least possible warranty: from 31st of January to 1st of March) to 89 days (the greatest possible warranty: from 1st of January to 31st of March). Not sufficient.

(2) When Santos purchased Product X in May 1997, the warranty expired in May 1997 --> warranty period can vary from 1 day (the least possible warranty: from 1st of May to 2nd of May) to 30 days (the greatest possible warranty: from 1st of May to 31st of May). Not sufficient.

(1)+(2) Intersection of the warranty periods from (1) and (2) is 29 and 30 days, still two possible answers. Not sufficient.

Answer: E.

Hope it's clear.

Hi - why are we finding ranges (highest difference in number of days or lowest difference in number of days)

Why are values like 2 weeks or 1 week or 20 days warranty not answer choices potentially

We want to know the warranty period in days. From (1) it can be anything from 29 days to 89 days. From (2) it can be anything from 1 day to 30 days. When combining it can be 29 or 30 days.

Now, taking the above into consideration what does your question mean?
_________________