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By approximately what percent did the total number of the st

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By approximately what percent did the total number of the st [#permalink] New post 29 Nov 2019, 03:09
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#greprepclub Of the four college enrollment categories shown.png
#greprepclub Of the four college enrollment categories shown.png [ 72.22 KiB | Viewed 103 times ]



By approximately what percent did the total number of the students enrolled in college increase from 1973 to 1993?

A. 45%

B. 55%

C. 65%

D. 75%

E. 85%


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Re: By approximately what percent did the total number of the st [#permalink] New post 29 Nov 2019, 19:16
9 million -> 13.9 million,
%change =(4.9*100)/9
approx 55% (option B)

Could someone explain why A & B are both correct ?

Last edited by luffy on 29 Nov 2019, 20:13, edited 1 time in total.
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Re: By approximately what percent did the total number of the st [#permalink] New post 29 Nov 2019, 19:31
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The total enrollment increased form 9 million to 13.9 million.
%change = (13.9-9)*100/9 = 490/9 = 54.4%
Approximating the result to match with given options, we can choose option B.
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