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"Twice" is the accepted way to say " two times", so D and E are out.
The rate in A and B cannot be fast - only moving things like "growth", "increase" can be fast. We also have lots of unnecessary words in B.
in normal lingo we would use twice as fast, when talking about rate, i.e speed of a car etc, however since the subject is minority population, I think the rate of growth was twice as it was in...is better....
in other words "increase" already takes place of "fast"
Okay, I think we all agree that the problem with this sentence is that it illogically compares the rate of increase of the minority population with the decade of the 1970's. So, we have to construct the sentence IOT compare the rate of increase in the 1980's with the rate of increase in the 1970's.
A and E are out automatically.
So is D with the whole "two times" things. Obviously not correct style.
So, B or C?
Tell you the truth, I'm really kinda stuck here.
They both seem to compare the rates to each other. I think the question is whether or not you can use "what" in the sentence.
For some reason, B seems to sound right. The "as fast as" part just sounds right. I don't know the rules governing the use of "what" in this sentence.
But why can't we use "what" here? That's what's getting me.
we can use what there and i have not objected the use of what as well.
Sorry, I meant can. Fingers moving one direction...brain the other. I think that you can use the as fast as to describe a rate of increase. Country A's rate of increase of X was twice as fast as country B's.
".... what it was in the 1970's" is exactly what is "the rate of increase in the 1970's".