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OG13:Unlike the short flights of the shuttle and earlier

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OG13:Unlike the short flights of the shuttle and earlier

by prabsahi » Thu Oct 26, 2017 7:59 am
Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel
cells and batteries, a permanently orbiting space station will have to generate its own electricity.
A. the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells
and batteries
B. the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their
short flights
C. the short flights of the shuttle and earlier spacecraft, which enabled them to carry sufficient
enough power in fuel cells and batteries
D. the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells
and batteries for their short flights
E. the flights of the shuttle and earlier spacecraft, whose shortness allowed them to carry sufficient
power in fuel cells and batteries

Hi experts..

Why option B is wrong and option A is correct.
Please hep me with the usage of 'with' in option B

I can find only one reason.Please help me understand better if I am missing out anything.

Only adverb can modify an adjective.Here sufficient is one adjective modifying another adjective(ENOUGH)
It should be sufficiently enough batteries.
If you want to fly,you have to give up the things that weighs you down!

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test

by yoavyes » Fri Nov 10, 2017 2:29 am
hi!
I think that the correct answer is not A but IMO it is D
when I solve SC questions I use the e-gmat way to solve them
e-gmat SC
1. understand the meaning of the original sentence
2. find the mistakes (if there are any) in the original sentence
3. eliminate wrong answer choices

lets go
A. Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel
cells and batteries, a permanently orbiting space station will have to generate its own electricity.


meaning - There are some some shuttle spacecrafts that do shorts flight (and they carry enough power in batteries).
and there is space station that will generate its own electricity and... THEY AREN'T THE SAME!

from the "Unlike" opening you can see that this is probably a comparison issue
we need to compare apples to apples
what can we compare?
1. spacecraft and space station. or
2. flights of spacecrafts and the flights of the space station
there is a problem in the original sentence - short flight can't be compared to space station


Unlike the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel
cells and batteries, a permanently orbiting space station will have to generate its own electricity.
A. the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells
and batteries
WRONG - see above

B. the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their
short flights

WRONG - redundancy
the author uses: sufficient enough - completely redundant

C. the short flights of the shuttle and earlier spacecraft, which enabled them to carry sufficient
enough power in fuel cells and batteries
WRONG - same as A, comparison of shorts flight and space station


D. the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells
and batteries for their short flights
RIGHT! a comparison between spacecraft and space station - just what we looked for.
the modifiers "which were..." look good and conveys the right meaning

E. the flights of the shuttle and earlier spacecraft, whose shortness allowed them to carry sufficient
power in fuel cells and batteries
WRONG - again a comparison between flights and space station
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by ceilidh.erickson » Tue Dec 12, 2017 2:29 pm
Yoav is correct: the correct answer is D, not A. This question also comes from GMATPrep, not OG13.

This question is testing COMPARISONS. Whenever you see the signal UNLIKE, make sure you're comparing "apples to apples": unlike X, Y....
The X and Y in this case should be in the grammatical part of speech, and they should be logically comparable.

The non-underlined portion of the original is:
Unlike..., a permanently orbiting space station will have to generate its own electricity.
(the word "unlike" is not actually underlined in the original).

The noun that follows "unlike" must be something comparable with "space station." It does not make logical sense to compare "flights" to a "space station"; the former is an action noun, whereas the latter is a tangible object. We need something that reads "Unlike [tangible object X], a space station will have to..."


A. the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells and batteries
"flights" is not comparable to "space station." Incorrect.

B. the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their short flights
"shuttle and earlier spacecraft" fixes the comparison issue, but "sufficient... enough" is redundant. Incorrect.

C. the short flights of the shuttle and earlier spacecraft, which enabled them to carry sufficient enough power in fuel cells and batteries
Same issue as in A. Incorrect.

D. the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells and batteries for their short flights
"shuttle & spacecraft" is comparable to "space station," and the modifier works. Correct!

E. the flights of the shuttle and earlier spacecraft, whose shortness allowed them to carry sufficient power in fuel cells and batteries
Same issue with "flights." Incorrect.
Ceilidh Erickson
EdM in Mind, Brain, and Education
Harvard Graduate School of Education
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OG13:Unlike the short flights of the shuttle and earlier

by ceilidh.erickson » Tue Dec 12, 2017 2:34 pm
Here are other problems that require us to compare "apples to apples" when a sentence begins with UNLIKE:
https://www.beatthegmat.com/the-use-of- ... tml#539972
https://www.beatthegmat.com/gprep-sc-9- ... tml#722472
https://www.beatthegmat.com/the-scorpio ... tml#756702
https://www.manhattanprep.com/gmat/blog ... orrection/

And advice for SC in general:
https://www.manhattanprep.com/gmat/blog ... orrection/
Ceilidh Erickson
EdM in Mind, Brain, and Education
Harvard Graduate School of Education
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by oishik2910 » Wed Dec 13, 2017 8:04 am
A 5 seconds scan of the answers clearly shows word unlike:so comparison question
now
so we need Unlike X,Y
reading the sentence we see : Unlike X , a permanent space orbiting station
so X must be a space station or rocket
Now scanning the answer
A. the short flights of the shuttle and earlier spacecraft, which carried sufficient power in fuel cells
and batteries
B. the shuttle and earlier spacecraft, with sufficient enough power in fuel cells and batteries for their
short flights
C. the short flights of the shuttle and earlier spacecraft, which enabled them to carry sufficient
enough power in fuel cells and batteries
D. the shuttle and earlier spacecraft, which were capable of carrying sufficient power in fuel cells
and batteries for their short flights
E. the flights of the shuttle and earlier spacecraft, whose shortness allowed them to carry sufficient
power in fuel cells and batteries

we can straight away eliminate A,C,and E for not mentioning rocket or space station
now scanning B and D
we see the use of sufficient enough in B : considered redundant on GMAT
therefore D is the answer
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