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

 It is currently 16 Oct 2019, 10:01

### 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

# I bought a pair of glasses from an optometrist. One of the lenses regu

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58381
I bought a pair of glasses from an optometrist. One of the lenses regu  [#permalink]

### Show Tags

15 Feb 2019, 04:13
00:00

Difficulty:

5% (low)

Question Stats:

92% (00:54) correct 8% (01:09) wrong based on 84 sessions

### HideShow timer Statistics

I bought a pair of glasses from an optometrist. One of the lenses regularly pops out of the frame. Therefore, this optometrist doesn’t know how to make a good pair of glasses.

The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

(A) does not allow the optometrist a chance to defend himself

(B) does not consider the possibility that other optometrists also make defective frames

(C) criticizes the optometrist’s use of a particular technique when making glasses

(D) jumps to the conclusion that the defect in the glasses must be due to the optometrist’s lack of skill

(E) accuses the optometrist of deliberately sabotaging the glasses

_________________
Intern
Joined: 19 Oct 2018
Posts: 8
Location: India
Concentration: Finance, Economics
GPA: 4
WE: Human Resources (Consulting)
Re: I bought a pair of glasses from an optometrist. One of the lenses regu  [#permalink]

### Show Tags

17 Feb 2019, 11:01
D correctly weakens the statement.
Manager
Joined: 12 Apr 2011
Posts: 149
Location: United Arab Emirates
Concentration: Strategy, Marketing
Schools: CBS '21, Yale '21, INSEAD
GMAT 1: 670 Q50 V31
GMAT 2: 720 Q50 V37
WE: Marketing (Telecommunications)
Re: I bought a pair of glasses from an optometrist. One of the lenses regu  [#permalink]

### Show Tags

18 Feb 2019, 01:29
Bunuel wrote:
I bought a pair of glasses from an optometrist. One of the lenses regularly pops out of the frame. Therefore, this optometrist doesn’t know how to make a good pair of glasses.

The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

(A) does not allow the optometrist a chance to defend himself

(B) does not consider the possibility that other optometrists also make defective frames

(C) criticizes the optometrist’s use of a particular technique when making glasses

(D) jumps to the conclusion that the defect in the glasses must be due to the optometrist’s lack of skill

(E) accuses the optometrist of deliberately sabotaging the glasses

From the question stem we need to focus on the weakness in the argument:

(A) does not allow the optometrist a chance to defend himself
Not relevant

(B) does not consider the possibility that other optometrists also make defective frames
Not relevant

(C) criticizes the optometrist’s use of a particular technique when making glasses
No technique has been referred to in the argument. Hence not relevant

(D) jumps to the conclusion that the defect in the glasses must be due to the optometrist’s lack of skill
Correct. No other reasons have been analysed in the argument and weakens the argument.

(E) accuses the optometrist of deliberately sabotaging the glasses
Not such accusations made. Not relevant
_________________
Hit Kudos if you like what you see!
Math Expert
Joined: 02 Sep 2009
Posts: 58381
Re: I bought a pair of glasses from an optometrist. One of the lenses regu  [#permalink]

### Show Tags

27 Feb 2019, 04:26
Bunuel wrote:
I bought a pair of glasses from an optometrist. One of the lenses regularly pops out of the frame. Therefore, this optometrist doesn’t know how to make a good pair of glasses.

The reasoning in the argument is most vulnerable to criticism on the grounds that the argument

(A) does not allow the optometrist a chance to defend himself

(B) does not consider the possibility that other optometrists also make defective frames

(C) criticizes the optometrist’s use of a particular technique when making glasses

(D) jumps to the conclusion that the defect in the glasses must be due to the optometrist’s lack of skill

(E) accuses the optometrist of deliberately sabotaging the glasses

OFFICIAL EXPLANATION:

D. jumps to the conclusion that the defect in the glasses must be due to the optometrist’s lack of skill

The conclusion is that the optometrist is incompetent; the evidence is that one lens pops out regularly. But there’s no evidence that that’s because of the optometrist’s lack of skill. Choice (A) is wrong. Although giving the optometrist a chance to defend himself would be nice, it’s not a fault of the argument that the speaker doesn’t provide one. Choice (B) is wrong because other potentially unskilled optometrists have no bearing on the skills of the one in question here. Choice (C) doesn’t work. The author doesn’t mention any particular techniques. Choice (D) may be the answer. The author does jump to a conclusion here without making a connection between the glasses and the optometrist’s skill. Choice (E) is wrong because the author doesn’t suggest that sabotage played a role in the bad glasses. Choice (D) is the best answer.
_________________
Re: I bought a pair of glasses from an optometrist. One of the lenses regu   [#permalink] 27 Feb 2019, 04:26
Display posts from previous: Sort by