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Scientists predict

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by GmatKiss » Sat Aug 27, 2011 4:16 am
Scientists predict that by 2026, the amount of fresh water produced by desalination plants will exceed 50 billion gallons a year, or double the rate in 2010.

a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010
e)twice the rate in 2010

OA after some discussion
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by aspirant2011 » Sat Aug 27, 2011 9:10 am
GmatKiss wrote:Scientists predict that by 2026, the amount of fresh water produced by desalination plants will exceed 50 billion gallons a year, or double the rate in 2010.

a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010---- this seems to be the best one out of the all but I think instead of of it should be in. That refers to the amount of fresh water produced by desalination plants
e)twice the rate in 2010

Is the sentence from valid source????

OA after some discussion
Last edited by aspirant2011 on Sat Aug 27, 2011 9:53 pm, edited 1 time in total.
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by GmatKiss » Sat Aug 27, 2011 8:49 pm
wanting more comments/explanations!
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by crick » Sat Aug 27, 2011 11:39 pm
I will go with E here. But i am not sure.

Calling all experts to help clarify.

Crick
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by apex231 » Sun Aug 28, 2011 8:10 am
a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010
e)twice the rate in 2010

twice is an adverb and can't be used as an adjective or noun. So that eliminates C, D and E.

"or" in option A indicates that either the volume exceeded by "50 billion gallons a year" OR by double the rate in 2010. This error is also present in option C.

Only option remains is B.
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by nagaonmission » Sun Aug 28, 2011 9:21 am
GmatKiss wrote:Scientists predict that by 2026, the amount of fresh water produced by desalination plants will exceed 50 billion gallons a year, or double the rate in 2010.

a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010
e)twice the rate in 2010

OA after some discussion
IMO answer is A
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by Chaitanya_1986 » Sun Aug 28, 2011 10:34 am
For amounts and Quantity Words comparision, We should not use Double, but we rather use twice or thrice.....

So A and B are eliminated......

C is wrong because of use of word OR at start of sentence.....

E is wrong because of the usage the the rate in, but it is the amount.....

D is correct because it tells twice the amount of 2010 and is correct comparision..

OD is D
Chaitanya,

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by GmatKiss » Sun Aug 28, 2011 10:58 am
crick wrote:I will go with E here. But i am not sure.

Calling all experts to help clarify.

Crick
Hi,

Could you please let me know why you choose E

thanks,
GK
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by GmatKiss » Sun Aug 28, 2011 10:59 am
nagaonmission wrote:
GmatKiss wrote:Scientists predict that by 2026, the amount of fresh water produced by desalination plants will exceed 50 billion gallons a year, or double the rate in 2010.

a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010
e)twice the rate in 2010

OA after some discussion
IMO answer is A
Hi,

Could you please explain why you choose A

thanks
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by saketk » Mon Aug 29, 2011 9:59 pm
GmatKiss wrote:Scientists predict that by 2026, the amount of fresh water produced by desalination plants will exceed 50 billion gallons a year, or double the rate in 2010.

a)or double the rate in 2010
b)double that of 2010's
c)or twice the rate of 2010
d)twice that of 2010
e)twice the rate in 2010

OA after some discussion
Hi -- One more reason why option C & E are incorrect---it is grammatically incorrect to say "Twice the rate of or twice the rate in, respectively"

We should use "Twice that of" when doing a Comparison.

For example -- Apple iPhone user loyalty twice that of Android
or take one more example-- Android Market attrition rate is twice that of Apple's App Store

Other members have already explained why option A is incorrect (incorrect usage of "OR")

Option B is awkward (2010's)

Therefore, Option D is the correct option.
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by GmatKiss » Mon Aug 29, 2011 10:26 pm
IMO: A

E, misses out which is
which is twice the rate in 2010

Comments welcome!

TIA,
GK
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by edvhou812 » Tue Aug 30, 2011 1:20 am
a)or double the rate in 2010
Proper idiom is 'rate for'

b)double that of 2010's

c)or twice the rate of 2010
'rate of' is idiomatically incorrect. Proper idiom is 'rate for'

d)twice that of 2010

e)twice the rate in 2010
Proper idiom is 'rate for'

I'd pick D because the possesive for 2010 looks funny in B.
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by winniethepooh » Tue Aug 30, 2011 2:58 am
What's the OA?
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by GmatKiss » Tue Aug 30, 2011 4:22 am
edvhou812 wrote:a)or double the rate in 2010 - Correct
Proper idiom is 'rate for' - is not valid in this argument.

b)double that of 2010's (2910's what?)

c)or twice the rate of 2010 - CONTENDER
'rate of' is idiomatically incorrect. Proper idiom is 'rate for'- is not valid in this argument.

d)twice that of 2010 - what in 2010?

e)twice the rate in 2010
Proper idiom is 'rate for'

I'd pick D because the possesive for 2010 looks funny in B.
Rate for 2010 in this argument will mean year 2010 occurs after 2026, which is ambiguous!

Please correct me if am wrong!
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