Houseflies that hatch in summer live only about three weeks, but those

Question

Houseflies that hatch in summer live only about three  weeks, but those that emerge in the cooler days of fall often live  longer than six months.

(A) weeks, but those that emerge in the cooler days of fall often live
(B) weeks, but those that emerge in the cooler days of fall often live as long or
(C) weeks, which is different from those that emerge in the cooler days of fall and often live
(D) weeks; then those that emerge in the cooler days of fall often live as long as or
(E) weeks; this is different from those that emerge in the cooler days of fall, who often live

ankaua · Accepted Answer

Houseflies that hatch in summer live only about three weeks, but those that emerge in the cooler days of fall often live longer than six months.

Nothing is wrong with A, so let's keep it.

- proper form is "as long as", second "as" cannot be omitted. 
 - "which" touches "weeks", resulting in illogical meaning 
 - "then" could not be after ";". ';' has to connectc two independent clauses. 
 - it is not allowed to use free-standing "this"/"these" on GMAT; they can only be used as adjectives for the following noun.

GMATBuddha · Answer

Houseflies that hatch in summer live only about three  weeks, but those that emerge in the cooler days of fall often live  longer than six months.

those refers to houseflies. Clear 
 
those refers to houseflies. why do we have to say "live as long or longer than six months?" 
 
weeks are not different from houseflies!
 
same error in (B)
 
this is different - what is different?

daagh · Answer

Houseflies that hatch in summer live only about three  weeks, but those that emerge in the cooler days of fall often  live longer than six months.

(A) weeks, but those that emerge in the cooler days of fall often --- Answer choice. 
(B) weeks, but those that emerge in the cooler days of fall often live as long or -- The positive degree of comparison is incomplete. 
(C) weeks, which is different from those that emerge in the cooler days of fall and often live -- The relative pronoun 'which' has no logical referent. 
(D) weeks; then those that emerge in the cooler days of fall often live as long as or -- We do need a contrasting conjunction here. 'Then' is not a contrast marker. 
(E) weeks; this is different from those that emerge in the cooler days of fall, who often live -- 'This' is colloquial and 'who' cannot be justified.

daagh · Answer

Houseflies that hatch in summer live only about three  weeks, but those that emerge in the cooler days of fall often  live longer than six months.

(A) weeks, but those that emerge in the cooler days of fall often --- Answer choice. 
(B) weeks, but those that emerge in the cooler days of fall often live as long or -- The positive degree of comparison is incomplete. 
(C) weeks, which is different from those that emerge in the cooler days of fall and often live -- The relative pronoun 'which' has no logical referent. 
(D) weeks; then those that emerge in the cooler days of fall often live as long as or -- We do need a contrasting conjunction here. 'Then' is not a contrast marker. 
(E) weeks; this is different from those that emerge in the cooler days of fall, who often live -- 'This' is colloquial and 'who' cannot be justified.

churuand · Answer

(A) weeks, but those that emerge in the cooler days of fall often live - right choice
(B) weeks, but those that emerge in the cooler days of fall often live as long or - it should be "as long as", but we do not see any
(C) weeks, which is different from those that emerge in the cooler days of fall and often live - "which" wrongly modifies weeks
(D) weeks; then those that emerge in the cooler days of fall often live as long as or - "as long" is wrong again, in addition to "then" wrong conveys the sequential meaning. 
(E) weeks; this is different from those that emerge in the cooler days of fall, who often live - "this" must replace a noun, but we do not see any noun here that logically replaces "this"

gevimal161 · Answer

nice explanation.

Hoozan · Answer

Houseflies that hatch in summer live only about three  weeks, but those that emerge in the cooler days of fall often live  longer than six months.

Sentence Structure:  
Houseflies  (Subject) 
that hatch in summer  (Relative clause modifying the subject "houseflies") 
live  (Verb) 
only about three weeks  (more information about houseflies) 
, but  (,FANBOYS - used to separate two ICs) 
those  (relative pronoun referring to plural "houseflies") (Subject) 
that emerge in the cooler days of fall  (relative clause modifying "those") 
often live  (Verb) 
longer than six months.  (more information about houseflies)

(A) weeks, but those that emerge in the cooler days of fall often live - Correct
(B) weeks, but those that emerge in the cooler days of fall often live  as long  or - the correct idiom is "as long as"
(C) weeks,  which  is different from those that emerge in the cooler days of fall  and  often live - which cannot refer to houseflies. We don't need the "and" out here
(D) weeks;  then  those that emerge in the cooler days of fall often live as long as or - we cannot start a DC after a semicolon 
(E) weeks;  this  is different from those that emerge in the cooler days of fall,  who  often live - We need a noun after a demonstrative pronoun. I don't think the placement of "who" is correct either. It should be placed closer to the noun. Besides. "who" can ONLY refer to people
 
Correct:  (A)

VerbalBot · Answer

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Houseflies that hatch in summer live only about three weeks, but those

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Houseflies that hatch in summer live only about three weeks, but those

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