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GMAT Prep question - please explain

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GMAT Prep question - please explain

by dsuna » Sat Mar 24, 2007 10:15 am
A college admission officer predicts that 20 percent of the students who are accepted will not attend the college. According to this prediction, how many students should be accepted to achieve a planned enrollment of X students?

Ans. 1.25X
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by jayhawk2001 » Sat Mar 24, 2007 10:30 am
20% will not attend => 80% will attend

We are asked to find y such that 80% of y = X

y = (X / 80 )* 100 = 1.25X
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by Cybermusings » Tue Mar 27, 2007 4:52 am
Assume the college wants 100 students to attend college

Let's assume it should offer admission to x students

Therefore x - 20x/100 = 100

80x/100 = 100

80x = 10,000

x = 10,000/80 = 1000/8 = 125

Thus it should offer admission to 1.25x students
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