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Posted by **DAni** on Monday, November 10, 2008 at 1:44pm.

- MATH -
**Writeacher**, Monday, November 10, 2008 at 1:47pmIt's a ratio, so ...

http://www.aaastudy.com/rat.htm#topic7

4/9 = x/2340

- MATH -
**Reiny**, Monday, November 10, 2008 at 2:17pmSorry, but that equation is not correct

let the number of graduate students be 4x, let the number of undergrads be 9x

so 4x+9x = 2340

13x = 2340

x = 180

so number of undergraduates = 9x = 1620

(graduate students = 4x = 720)

notice 720:1620 = 4:9

- MATH -
- MATH -
**Writeacher**, Monday, November 10, 2008 at 2:45pmThanks, Reiny.

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