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January 26, 2015

January 26, 2015

Posted by **TUHITUHI** on Saturday, October 20, 2012 at 11:06am.

- math -
**Steve**, Saturday, October 20, 2012 at 3:37pmif he purchases them for p and sells them for s,

90(s-p) = 10s

90s - 90p = 10s

80s = 90p

s = 9/8 p = 1.125p

so profit is 12.5%

9/8 * 30000 = 33750

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