In the 1980's the rate of increase of the minority population of the United States was nearly twice as fast as the 1970's.
(A) twice as fast as
(B) twice as fast as it was in
(C) twice what it was in
(D) two times faster than that of
(E) two times greater than
Please explain your answer.
Even I got this answer wrong few days back when I chose B. Though there is nothing grammatically wrong in B, but brevity is one parameter that GMAT looks for in the answer choices. Lets look at the Ans. choices 1 by 1.
A is unclear. 1970's also implies 1971,72,73 ..etc... which can not be compared to the rate of increase.
D: "of" is unparalleled. The correct choice has to be "In the 1980's ... In the 1970's ..."
E : Reject outrightly.
Now, out of B and C, C is correct choice because "the rate of increase was twice what it was.. .. " conveys the same meaning that "twice as fast as it was in...." does but in lesser words Hence C.
And the OA is C.
-Unstoppable force moves immovable objects...-