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avohden
Joined: 09 Jul 2013
Last visit: 14 Mar 2015
Posts: 403
Given Kudos: 630
Status:1,750 Q's attempted and counting
Affiliations: University of Florida
Location: United States (FL)
Schools: Warrington (A)
GMAT 1: 570 Q42 V28
GMAT 2: 610 Q44 V30
GMAT 3: 600 Q45 V29
GMAT 4: 590 Q35 V35
GPA: 3.45
WE:Accounting (Accounting)
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
41% (01:54) correct
59%
(01:59)
wrong
based on 653
sessions
History
Date
Time
Result
Not Attempted Yet
Advertisement in the Harptown Train Station:
The Harptown Transport Society reports that the Silver Bullet train has the fewest delays per rush-hour period
of any high-speed train. This shows that the Silver Bullet train is one of the most efficient trains currently in use.
Which of the following, if true, most seriously weakens the argument in the advertisement?
(A) The Harptown Transport Society report listed many non-high-speed trains in other metropolitan areas
that were more frequently delayed than the Silver Bullet train.
(B) In recent years more travelers have regularly ridden the Silver Bullet train than any other high-speed train.
(C) High-speed trains are more likely to be delayed during rush hour than any other type of train.
(D) The difference between the number of delays on the Silver Bullet train and that for other high-speed trains
is quite pronounced.
(E) The Harptown Transport Society updates its findings regarding train delays only once a year.
Source: GMAT Hacks - 091713
The Harptown Transport Society reports that the Silver Bullet train has the fewest delays per rush-hour period
of any high-speed train. This shows that the Silver Bullet train is one of the most efficient trains currently in use.
Which of the following, if true, most seriously weakens the argument in the advertisement?
(A) The Harptown Transport Society report listed many non-high-speed trains in other metropolitan areas
that were more frequently delayed than the Silver Bullet train.
(B) In recent years more travelers have regularly ridden the Silver Bullet train than any other high-speed train.
(C) High-speed trains are more likely to be delayed during rush hour than any other type of train.
(D) The difference between the number of delays on the Silver Bullet train and that for other high-speed trains
is quite pronounced.
(E) The Harptown Transport Society updates its findings regarding train delays only once a year.
Source: GMAT Hacks - 091713
avohden
Joined: 09 Jul 2013
Last visit: 14 Mar 2015
Posts: 403
Given Kudos: 630
Status:1,750 Q's attempted and counting
Affiliations: University of Florida
Location: United States (FL)
Schools: Warrington (A)
GMAT 1: 570 Q42 V28
GMAT 2: 610 Q44 V30
GMAT 3: 600 Q45 V29
GMAT 4: 590 Q35 V35
GPA: 3.45
WE:Accounting (Accounting)
03 Oct 2013, 06:37
Kudos
Bookmarks
Official Explanation
Answer: C This is a classic example of a scope shift. The evidence (the first sentence) compares the Silver Bullet to other "high-speed trains." The conclusion compares it to all trains. Just because a train has few delays relative to other high-speed trains doesn't mean it has few delays (or is "efficient") compared to ALL trains. Look for a choice that points out the scope shift. Choice (C) does that. If high-speed trains are often delayed, then argument is weakened. It exposes the flaw in the argument, which is along the lines of "Alex is the smartest ‘D' student in the class." (C) is correct.
Answer: C This is a classic example of a scope shift. The evidence (the first sentence) compares the Silver Bullet to other "high-speed trains." The conclusion compares it to all trains. Just because a train has few delays relative to other high-speed trains doesn't mean it has few delays (or is "efficient") compared to ALL trains. Look for a choice that points out the scope shift. Choice (C) does that. If high-speed trains are often delayed, then argument is weakened. It exposes the flaw in the argument, which is along the lines of "Alex is the smartest ‘D' student in the class." (C) is correct.
General Discussion
03 Oct 2013, 06:33
Kudos
Bookmarks
Imo c
Silver bullet train ( high speed train) is the most efficient of all trains.
C says that high speed trains are more likely than any other type of train to get delayed clearly weakens it
Sent from my GT-N7105 using Tapatalk 2
Silver bullet train ( high speed train) is the most efficient of all trains.
C says that high speed trains are more likely than any other type of train to get delayed clearly weakens it
Sent from my GT-N7105 using Tapatalk 2
