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by isisalaska » Tue Feb 06, 2007 10:52 am
Hi
Which strategy is better to solve percentage type of problems?
Example:

The price of a TV is increased by 40% and then decreased by 25% of the new price?

Pick 100 or

20-25- (40*25/100)?
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by maxim730 » Tue Feb 06, 2007 11:21 am
The price of a TV is increased by 40% and then decreased by 25% of the new price?

(x)(1.40)(.75) i think should work
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by isisalaska » Tue Feb 06, 2007 11:33 am
So the new price will mean a 105% change
not a 5% :?
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by Stacey Koprince » Wed Feb 07, 2007 10:38 pm
It really depends what you prefer. I like the "pick 100" strategy because we all make fewer mistakes with real, whole numbers. When I'm in the midst of the stress-filled test, I want my default strategies to be the ones that minimize my chances to make mistakes.
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by cjiang16 » Sun Apr 06, 2008 2:33 pm
Thanks, maxim730
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