799 The owner of Steele’s Grocery in Osage, Ohio, saved $600 monthly on heat during the winter by putting all his refrigerator air compressors together in an insulated compartment, then installing two fans and a duct that carried waste heat from the compressors into the main part of the store.
(A) then installing two fans and a duct that carried
(B) then he installing two fans and a duct that carried
(C) then two fans were installed with a duct that carried
(D) installing two fans, and then carrying through a duct
(E) installing two fans, and a duct carrying
Can you please explain why the answer is A instead of D? (A seems to be a sentence fragment.)
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- gter
- RonPurewal
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Choice D implies that the owner somehow carried heat through a duct himself!
Choice E is nonparallel: you have putting, then installing, and then finally ... a duct. That doesn't work. Also, notice that the meaning is distorted: this choice makes it sound like the two fans were installed independently, and had little or nothing to do with the duct.
I think that, were this problem to appear on the GMAT, choice A would read '...AND then installing'. Remember, these are 1000sc problems - not worthless, of course, but some of them differ dramatically from GMAT-style usage, especially when it comes to idiomatic constructions.
Choice E is nonparallel: you have putting, then installing, and then finally ... a duct. That doesn't work. Also, notice that the meaning is distorted: this choice makes it sound like the two fans were installed independently, and had little or nothing to do with the duct.
I think that, were this problem to appear on the GMAT, choice A would read '...AND then installing'. Remember, these are 1000sc problems - not worthless, of course, but some of them differ dramatically from GMAT-style usage, especially when it comes to idiomatic constructions.
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