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Director
Joined: 30 Jan 2016
Posts: 839
Location: United States (MA)

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31 Aug 2017, 10:37
4
00:00

Difficulty:

25% (medium)

Question Stats:

72% (01:39) correct 28% (01:51) wrong based on 227 sessions

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Which one of the following is an assumption required by the argument in the consumer magazine?

(C) A washing machine gets clothes really clean only with a laundry detergent specially formulated for that machine.
(D) A laundry detergent does not get clothes really clean in a washer unless it dissolves readily in it.
(E) Washers that use more water get clothes cleaner than those that use less

Source: LSAT

Kudos

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Non progredi est regredi

Director
Joined: 14 Nov 2014
Posts: 634
Location: India
GMAT 1: 700 Q50 V34
GPA: 3.76

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31 Aug 2017, 19:50
Masshole wrote:

Which one of the following is an assumption required by the argument in the consumer magazine?

(C) A washing machine gets clothes really clean only with a laundry detergent specially formulated for that machine.
(D) A laundry detergent does not get clothes really clean in a washer unless it dissolves readily in it.
(E) Washers that use more water get clothes cleaner than those that use less

Source: LSAT

Kudos

Pre thinking : find a link between extent to which detergent gets dissolve in water and detergent's cleaning effect ...
D does that perfectly ...
Senior CR Moderator
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31 Aug 2017, 20:09
Masshole wrote:

Which one of the following is an assumption required by the argument in the consumer magazine?

The argument makes no indication as this choice states.

(C) A washing machine gets clothes really clean only with a laundry detergent specially formulated for that machine.
A tricky choice. Actually, the argument states that the front-loading washers use less water so the regular powder detergent does not dissolve readily. Hence, we need to use a detergent formulated especially for front-loading washers, which could have some special chemicals that help the powder detergent dissolve readily with lesser water.

(D) A laundry detergent does not get clothes really clean in a washer unless it dissolves readily in it.
CORRECT. The missing link here is the lack of water makes powder detergent does not dissolve readily and usage of a detergent formulated especially for front-loading washers to make clothes cleaner.

(E) Washers that use more water get clothes cleaner than those that use less
The water plays no role in making clothes cleaner. It just helps the powder detergent dissolve readily
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Joined: 03 Feb 2018
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25 Jul 2018, 17:56
Akela wrote:

Which one of the following is an assumption required by the argument in the consumer magazine?

(C) A washing machine gets clothes really clean only with a laundry detergent specially formulated for that machine.
(D) A laundry detergent does not get clothes really clean in a washer unless it dissolves readily in it.
(E) Washers that use more water get clothes cleaner than those that use less

Source: LSAT

Kudos

Hi,

the option E has pronoun ambiguity, as, it should refer to detergent but detergent is not mentioned in the sentence.
So is this option correct?
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