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GMAT Prep - PS Percents & Algebra

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by durgesh79 » Mon Jun 30, 2008 2:12 am
selling price is S
S-150=0.4*S
0.6*S=150
S=250

profit = 250-150=100
Option E
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by albertrahul » Mon Jun 30, 2008 2:25 am
Thanks Durgesh.

How did you got second line "0.6*S=150"?
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by durgesh79 » Mon Jun 30, 2008 5:31 am
take all terms with S to one side.
S*(1-0.4)=0.6*S
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by AleksandrM » Mon Jun 30, 2008 9:21 am
Let x be the selling price.

150 +.4x = x

150 = .6x

x = 250

250 - 150 = 100
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by albertrahul » Tue Jul 01, 2008 9:52 pm
Thanks Aleksandr and Durgesh!
That's actually a fairly easy question, I think I just got stuck with verbiage.
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