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Sunday, November 18, 2007
GRE QUESTION ON DEMAND
Enrollment in City College in 1980 was 83⅓ percent of enrollment in 1990. What was the percent increase in the college’s enrollment from 1980 to 1990? (A) 10% (B) 16⅔% (C) 20% (D) 25% (E) 183⅓%
simple....let us assume the enrollment in the yr 1990 be "x"...then the enrollment in 1980 will be "0.835x".therefore the increment in erollment is =1-0.835=0.165x.therefore ,percentage increase is 0.165x/0.835x=19.8%.....approximately 20%(your answer)
simple....let us assume the enrollment in the yr 1990 be "x"...then the enrollment in 1980 will be "0.835x".therefore the increment in erollment is =1-0.835=0.165x.therefore ,percentage increase is 0.165x/0.835x=19.8%.....approximately 20%(your answer)
ReplyDeleteans is 20%
ReplyDeleteC... 20%
ReplyDeleteAns is 20%
ReplyDeleteans is 20%
ReplyDeleteanswe is c
ReplyDelete1990 enrollment be x
ReplyDelete1980 enrollment (250/3)*(1/100)*x
=5x/6
(x-(5x/6))/(5x/6)
(x/6)*(6/5x)=1/5
(1/5)*100=20%
YES 20% IS CORRECT ANSWER
ReplyDelete