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

 It is currently 25 Mar 2019, 09:07

### 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

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

# For the last five years, the XYZ Courier Company has made regular deli

Author Message
TAGS:

### Hide Tags

Manager
Joined: 26 Mar 2007
Posts: 63
Schools: Thunderbird '15
For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

10 Mar 2011, 09:15
2
24
00:00

Difficulty:

95% (hard)

Question Stats:

48% (02:18) correct 52% (02:27) wrong based on 810 sessions

### HideShow timer Statistics

For the last five years, the XYZ Courier Company has made regular delivery trips between Town A and Town B. The average time taken by the company’s drivers to drive the round trip between the two towns, excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes. John, a driver for XYZ, needs to make a personal trip between the two towns; he figures that he should allow approximately 80 minutes for the round trip.

Which of the following, if true, does not call John’s conclusion into question?

(A) The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time.

(B) Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles.

(C) Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself.

(D) John will make his personal trip at an hour when XYZ does not make delivery trips.

(E) Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones.

What is the question type? Assumption / Strengthen / Weaken ?

What is that ans choice C is trying to say?

Thanks
Senior Manager
Joined: 18 Oct 2010
Posts: 374
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

10 Mar 2011, 09:48
5
2
This is an EXCEPTweaken question. We need to choose the choice that does not weaken the conclusion.

a) The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time. Weakens the conclusion by saying that the trip can take more than 80 mins

b) Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles.This wekens the conclusion by saying that John might be able to complete the trip before 80 mins

c) Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself.No effect on conclusion

d) John will make his personal trip at an hour when XYZ does not make delivery trips.This weakens the conclusion because it will allow john to make the trip faster

e) Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones. Again, weakens the conclusion.
So we can see that C is the best choice. When I solved this problem, I was stuck between C and D. Eventually, I figured that D weakens the conclusion because if trucks are not on his route at that time, he may be able to drive faster!!!
##### General Discussion
Retired Moderator
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1120
Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

10 Mar 2011, 10:31
2
+1 C

Wow, though one.

A - The congestion is increasing, so it is possible that it will take more time for the round trip.
B. Probably, the car of the driver is a McLaren F1 or a Ferrari F50.
C. Correct.
D. Probably, the driver will make the trip very early in the morning, when there are not many cars.
E. I understand that the average time of 80 minutes includes the 5 years. In this sense, after the freeway was built, the average of the last two years has decreased. Therefore, it is possible that the round trip will take less than 80 minutes.

However, I think this question is not well constructed. The argument should mention that the average is based on the 5-years period.
_________________
"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
Retired Moderator
Joined: 20 Dec 2010
Posts: 1789
For the last five years, the XYZ Courier Company has made re  [#permalink]

### Show Tags

17 Jul 2011, 11:52
1
Calls into question means Weakens an argument. Doesn't call into question is the opposite- Strengthens.

Question type: WeakensX

John thinks it would take him 80 minutes for the entire trip. All but one of the options prove his thinking wrong and here's how:

a) The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time.
>>>It gives a reason to suspect that the present state of road will cause him more time.
Just a hypothetical scenario:
5 years back-> No congestion-> Speed 130 mph
Now-> Congestion-> Speed 30 mph
Average-> 80 mph
Thus, average speed for last five years is not a good basis to judge the travel time today. Weakens.

b) Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles.
>>>John will be traveling in a passenger car and can potentially travel faster because of less restriction. The travel time can thus be significantly lower.

c) Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself.
>>> average time was calculated "excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes." Thus, this doesn't weaken his guess.

d) John will make his personal trip at an hour when XYZ does not make delivery trips.
Night times; free road. Faster travel time compared to the travel time during the day when the delivery happens.

e) Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones.
2 years back-> bad speed-> maybe 50
Now->110 mph
John can make the trip more quickly.
Weaken

Ans: "C"
_________________
Retired Moderator
Joined: 20 Dec 2010
Posts: 1789
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

17 Jul 2011, 11:57
2
1
pkmme wrote:
The answer is C; however, bear my ignorance, my point is that as per the question "does not call John’s conclusion into question" can be interpreted as choose an option that doesn't call John's conclusion that he can cover the round trip in 80 mins into question or doesn't weakens the conclusion. Taking this into consideration, B also points out the courier vehicles are slow as they carry heavy goods and the courier vehicles take 80 mins. Thus, John going on a personal journey can definitely cover the trip in less than 80 mins. So, B also doesn't weaken the conclusion

If you predict that you would score approximately 750 in GMAT.

Scoring an 800 or a 700 would both be considered bad prediction. This argument is similar.

80 mph means 80 mph.
both 130 mph AND 30 mph are bad result.
_________________
Retired Moderator
Joined: 20 Dec 2010
Posts: 1789
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

26 Jul 2011, 10:13
UtterNonsense wrote:
d) John will make his personal trip at an hour when XYZ does not make delivery trips.
Night times; free road. Faster travel time compared to the travel time during the day when the delivery happens.

Sorry for the stupid question but how can we assume that delivery happens only during the day time or any other time at which the company XYZ doesn't make delivery trips the traffic would be less - Could you please explain?

No we can't assume so. I just presented this hypothetical scenario to instantiate what the statement is trying to convey.

A more generalized interpretation would be:

Because John makes the trip at an hour different from usual delivery hour, the traffic condition may be different, affecting his commuting time.
_________________
Intern
Joined: 25 Jul 2011
Posts: 25
Location: United Kingdom
Concentration: Finance, Strategy
Schools: Schulich (A)
GMAT 1: 660 Q49 V31
GPA: 3.13
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

26 Jul 2011, 10:44
fluke wrote:
UtterNonsense wrote:
d) John will make his personal trip at an hour when XYZ does not make delivery trips.
Night times; free road. Faster travel time compared to the travel time during the day when the delivery happens.

Sorry for the stupid question but how can we assume that delivery happens only during the day time or any other time at which the company XYZ doesn't make delivery trips the traffic would be less - Could you please explain?

No we can't assume so. I just presented this hypothetical scenario to instantiate what the statement is trying to convey.

A more generalized interpretation would be:

Because John makes the trip at an hour different from usual delivery hour, the traffic condition may be different, affecting his commuting time.

Aaah... that rings the bell. Thanks!
Intern
Joined: 24 Jun 2011
Posts: 39
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

27 Jul 2011, 12:57
C. As this time is already accounted for it has no effect on the estimation.
Intern
Joined: 03 Nov 2010
Posts: 11
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

12 Aug 2011, 05:50

The official answer explanation is as below:
Quote:
John assumes that his round-trip driving time between the two towns will be similar to XYZ’s average time, over the last five years, for the same round trip. Therefore, John’s conclusion will be weakened by (a) any systematic difference between John’s personal trip and XYZ’s company trips, or (b) any reason why the five-year average is not representative of the time currently required to drive between the two towns.

(A) If this statement is true, then the five-year average commute time will not be representative of the current commute time, since the increasing congestion will have raised the current commute time to a level greater than the five-year average.

(B)If most of XYZ’s courier vehicles are subject to speed limits lower than those for commuter automobiles, then the courier vehicles’ commute time will probably be longer than John’s commute time in his personal vehicle.

(C) Correct
The cited round-trip time specifically excludes the time required for loading, unloading, and delivery, so the length of time taken by these tasks is irrelevant to the conclusion at hand.

(D) Since traffic patterns are highly dependent upon the time of day, the given 80-minute average cannot necessarily be expected to hold at times when XYZ does not make deliveries.

(E) If this statement is true, then, for the first three years of the five-year period in question, the transit time between the two towns would have been much longer than that for the last two years of the period (and thus the current time). Therefore, in this case, the five-year average will not be representative of the current time.

I got two points here :
1.I understand that we need to pick a choice that has got no effect on the conclusion. So, it has got nothing to do whether an option that strengthems or weakens the conclusion. The right explanation should read as marked above instead of weakened , it should use "affected"

2. I found the question ambiguous in that there is no way to tell from the q. stem if John will use his own personal vehicle or the company truck. So,this clouded my reasoning.

But I guess the way to deal with this kind of complex stuff like this is to take a simplistic approach and then attack the choices.

Thanks.
Manager
Joined: 12 Dec 2010
Posts: 227
Concentration: Strategy, General Management
GMAT 1: 680 Q49 V34
GMAT 2: 730 Q49 V41
GPA: 4
WE: Consulting (Other)
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

12 Aug 2011, 06:14
Got E at first try but C souds right as in does not matter to the conclusion!
_________________
My GMAT Journey 540->680->730!

~ When the going gets tough, the Tough gets going!
Manager
Joined: 28 Jul 2011
Posts: 176
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

16 Aug 2011, 09:21
C from me, for the reason we are asked to weaken the conclusion of John, if something is true

Conclusion : John should allow approximately 80 minutes for the round trip.

Premise: company’s drivers to drive the round trip between the two towns is 80 mins. ( excluding the time taken for loading, unloading, and delivery)

A: out of queston
B: Out of scope : condition seems good but can be argued in multiple ways both (true and false)
C: Correct: for the reason, if we assume that if the premise is changed this can weaken the conclusion of John. ( excluding the time taken for loading, unloading, and delivery)
Intern
Joined: 18 Aug 2011
Posts: 49
Re: For the last five years, the XYZ Courier Company has made regular deli  [#permalink]

### Show Tags

19 Aug 2011, 12:55
metallicafan wrote:
+1 C

However, I think this question is not well constructed. The argument should mention that the average is based on the 5-years period.

Had the same issue. Even though I chose C eventually, the average-definition is rather vague
Intern
Joined: 05 Oct 2011
Posts: 35
For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

Updated on: 19 Jul 2017, 04:05
2
1
For the last five years, the XYZ Courier Company has made regular delivery trips between Town A and Town B. The average time taken by the company’s drivers to drive the round trip between the two towns, excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes. John, a driver for XYZ, needs to make a personal trip between the two towns; he figures that he should allow approximately 80 minutes for the round trip.

Which of the following, if true, does not call John’s conclusion into question?

A. The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time.
B. Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles.
C. Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself.
D. John will make his personal trip at an hour when XYZ does not make delivery trips.
E. Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones.

Originally posted by ruturajp on 09 Dec 2011, 20:35.
Last edited by Skywalker18 on 19 Jul 2017, 04:05, edited 1 time in total.
Retired Moderator
Status: Flying over the cloud!
Joined: 17 Aug 2011
Posts: 557
Location: Viet Nam
GMAT Date: 06-06-2014
GPA: 3.07
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

10 Dec 2011, 02:14
ruturajp wrote:
For the last five years, the XYZ Courier Company has made regular delivery trips between Town A and Town B. The average time taken by the company’s drivers to drive the round trip between the two towns, excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes. John, a driver for XYZ, needs to make a personal trip between the two towns; he figures that he should allow approximately 80 minutes for the round trip.

Which of the following, if true, does not call John’s conclusion into question?

The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time. => this sentence make the time spending more than 80 min

Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles. => make shorter time, <80 min

Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself. => does not affect anymore to the time spending for personal trip

John will make his personal trip at an hour when XYZ does not make delivery trips. => clearly <80min

Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones. => now, free way was built, make the time spending for the trip is less

This kind of question is Weakening EXCEPT
_________________
Intern
Joined: 05 Oct 2011
Posts: 35
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

10 Dec 2011, 06:29
tuanquang269 wrote:
ruturajp wrote:
For the last five years, the XYZ Courier Company has made regular delivery trips between Town A and Town B. The average time taken by the company’s drivers to drive the round trip between the two towns, excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes. John, a driver for XYZ, needs to make a personal trip between the two towns; he figures that he should allow approximately 80 minutes for the round trip.

Which of the following, if true, does not call John’s conclusion into question?

The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time. => this sentence make the time spending more than 80 min

Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles. => make shorter time, <80 min

Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself. => does not affect anymore to the time spending for personal trip

John will make his personal trip at an hour when XYZ does not make delivery trips. => clearly <80min

Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones. => now, free way was built, make the time spending for the trip is less

This kind of question is Weakening EXCEPT

I am still confused..please explain it more in detail
Manager
Joined: 27 Oct 2011
Posts: 130
Location: United States
Concentration: Finance, Strategy
GPA: 3.7
WE: Account Management (Consumer Products)
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

10 Dec 2011, 13:42
1
_________________
DETERMINED TO BREAK 700!!!
Manager
Status: D-Day is on February 10th. and I am not stressed
Affiliations: American Management association, American Association of financial accountants
Joined: 12 Apr 2011
Posts: 172
Location: Kuwait
Schools: Columbia university
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

10 Dec 2011, 14:20
I chose B, then I realized it was asking for the one NOT calling into a questions hate it when it happens
_________________
Sky is the limit
Intern
Joined: 08 Jun 2011
Posts: 44
Schools: NUS
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

10 Dec 2011, 23:08
ruturajp wrote:
For the last five years, the XYZ Courier Company has made regular delivery trips between Town A and Town B. The average time taken by the company’s drivers to drive the round trip between the two towns, excluding the time taken for loading, unloading, and delivery, over that period has been 80 minutes. John, a driver for XYZ, needs to make a personal trip between the two towns; he figures that he should allow approximately 80 minutes for the round trip.

Which of the following, if true, does not call John’s conclusion into question?

The route between Town A and Town B has been plagued by increasing congestion over the last five years, as the area's population has doubled during that time.

Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles.

Many of the packages carried by XYZ between Town A and Town B are large, high-security packages, for which the processes of loading, unloading, and delivery can take up to half the length of the trip itself.

John will make his personal trip at an hour when XYZ does not make delivery trips.

Before a freeway was built between Town A and Town B two years ago, the only routes between the two towns were state highways with multiple traffic lights and reduced-speed downtown zones.

+1 for C...rest all weakens the conclusion
Intern
Joined: 12 Nov 2011
Posts: 21
GMAT Date: 12-15-2011
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

11 Dec 2011, 08:09
Anyone can help me to clarify why A waken the conclusion???
Senior Manager
Joined: 28 Jul 2011
Posts: 342
Location: United States
GPA: 3.86
WE: Accounting (Commercial Banking)
Re: For the last five years, the XYZ Courier Company has made  [#permalink]

### Show Tags

11 Dec 2011, 08:35
I will go with B, it says courier vehicles takes approx 80 min and says passeger vehicles are faster than courier vehicles so 80 min should be sufficient for the trip

Plz correct me if i am wrong and also please share the OA?
_________________
Re: For the last five years, the XYZ Courier Company has made   [#permalink] 11 Dec 2011, 08:35

Go to page    1   2    Next  [ 40 posts ]

Display posts from previous: Sort by