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For the last five years, the XYZ Courier Company has made re

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For the last five years, the XYZ Courier Company has made re [#permalink] New post 31 Oct 2013, 03:55
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A
B
C
D
E

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45% (02:41) correct 55% (01:42) wrong based on 148 sessions
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.

This question already exist on those forum, But the discussion was quite overflooded, so I have reposted it.

Please do not delete it.

I do not believe that C is the correct answer any expert commentary please?
[Reveal] Spoiler: OA

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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 31 Oct 2013, 04:24
Why do you not believe that C is the correct answer?

The way I see it, it asks which will NOT call John's conclusion into question.

In the prompt it states that it takes 80 minutes excluding loading and unloading thus C which tells us that half of the trip for the courier is loading and unloading will have zero effect on John's personal trip because it is not calculated in the original time of 80 minutes.

Of the Others
A- If there is more congestion during the time that John's personal trip vs. courier trips then it could call the conclusion into question
B- If speed limits are lower for his work truck, then he could go faster in a personal vehicle, calling into question his conclusion
D- Different times could equal different traffic patterns/congestion...
E- Out of scope
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 03 Nov 2013, 23:18
Even out of scope/irrelevant answers will not question John's conclusion. And E is out of scope - it neither supports nor weakens the conclusion. E is irrelevant. So why can't E be the answer.

Experts plz help..
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 05 Nov 2013, 07:44
I think that E can't be the answer because it seems now there are multiple ways to get to the town, thus one could take 80 minutes, and the other could take 40 . This would call John's conclusion.

I am by no means an expert, but this is why I eliminated E. Experts? Thoughts?
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 01 Jan 2014, 16:27
nikhil09 wrote:
Even out of scope/irrelevant answers will not question John's conclusion. And E is out of scope - it neither supports nor weakens the conclusion. E is irrelevant. So why can't E be the answer.

Experts plz help..


Verbal experts out there. Is this true? Can't an out of scope question be an answer when one tries the 'odd one out strategy'?

This is a very interesting question for sure

Thanks a lot
Cheers!

J :)
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 02 Jan 2014, 00:16
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.

this is not out of scope. 80 mins is avg of 5 years, 2 years earlier time reduced. before that it was much higher. so presently 80 mins is not a good criteria as time required is much less than 80 mins . .

SO c remains
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 02 Jan 2014, 08:27
E is not out of scope as it implies that for three years out of five, time required for a round trip was much more than it has been for the last two years.Thus the average turns out to be 80 mins.John should lower his estimate of time required for the personal trip.He won't take 80 mins now.

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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 02 Jan 2014, 10:18
I AM STUCK BETWEEN "C" AND "E"......

CONCLUSION------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.

NOTE, IT WAS AVERAGE TIME AS 80 MINUTES FOR A ROUND TRIP IN THE PREMISE.........
Which of the following, if true, does not call John’s conclusion into question?

ELIMINATE ALL ANSWERS THAT WEAKEN JOHN'S ARGUMENT----

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....THUS TIME TAKEN COULD BE MORE THAN 80 MINUTES... HENCE INCORRECT...

b) Most of XYZ’s courier vehicles are heavy trucks, for which speed limits are lower than for passenger vehicles......SINCE AVERAGE SPEED IS 80 MINUTES.....THIS COULD STILL NOT RULE OUT MORE THAN 80 MINUTES TAKEN BY JOHN....INCORRECT...

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......NOT A WEAKENER .... COULD BE A CORRECT ANSWER...

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

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....HENCE THOUGH AVERAGE TIME OVER 5 YEARS HAS BEEN 80 MINUTES, NOW VEHICLES MUST BE TAKING LESSER AS THE HIGHWAYS HAVE IMPROVED... HENCE STRENGTHENER.... HENCE COULD BE CORRECT...
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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 03 Jan 2014, 09:50
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Hi All,

Let me see if I can help clarify. The Correct answer is "C"

As a lot of you have stated, this is not a weakener, as the 'loading' etc has already been taken out of the timing equation in the paragraph. So that loading is time consuming, does not matter in the 80 min calculation.

With E though, there is a problem. The 80min estimation has been done over 5 years the question says. But E tells us that for 3 of those, the drive would have been done on a local road, but it can now be done on the freeway. So the average time now is likely to be less than the average over the past 5 years.

This means that John's journey should be estimated to take less time, hence why E does indeed weaken, and so is incorrect.

Hope this helps.

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Re: For the last five years, the XYZ Courier Company has made re [#permalink] New post 20 Mar 2014, 05:40
honchos 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?

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.

This question already exist on those forum, But the discussion was quite overflooded, so I have reposted it.

Please do not delete it.

I do not believe that C is the correct answer any expert commentary please?


Let me try and help out on this.

Option A -> Underestimation. Increased congestion on roads would mean John would take more than 80 mins.

Option B -> Overestimation. This would mean he would be travelling faster than the courier vehicles.

Option D -> Invalid Estimation. This implies that he'd make a trip during non-working hours of XYZ company. So the conclusion that it takes an average of 80 mins for a round trip during those hours is an invalid one.

Option E -> Overestimation. 80 mins is average of 5 years. This option states that for the first 3 years of that period, the average was higher. So currently it is lower.

Option C -> Packing/loading/unloading etc time is irrelevant to John's estimates and conclusion. And hence, the correct choice

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Re: For the last five years, the XYZ Courier Company has made re   [#permalink] 20 Mar 2014, 05:40
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