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# ps - food

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VP
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26 Dec 2005, 11:55
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if a kind of packaged food increase 40% of its quantity and the price x remains constant, the customer can economize how much when buy one ounce of such food?
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VP
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26 Dec 2005, 13:51
2/7 or 28%

let:
q : initial quatity purchased in $x thus 1.4q = new quantity in$x

economise = old price/ounce - new price / ounce
= x/q - x/(1.4q) = 2/7 x/q = 2/7 of original price/ounce
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SVP
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26 Dec 2005, 17:41
duttsit wrote:
2/7 or 28%

let:
q : initial quatity purchased in $x thus 1.4q = new quantity in$x

economise = old price/ounce - new price / ounce
= x/q - x/(1.4q) = 2/7 x/q = 2/7 of original price/ounce

go with dutt, confirm and lock it.
SVP
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26 Dec 2005, 20:09
duttsit wrote:
2/7 or 28%

let:
q : initial quatity purchased in $x thus 1.4q = new quantity in$x

economise = old price/ounce - new price / ounce
= x/q - x/(1.4q) = 2/7 x/q = 2/7 of original price/ounce

Very elegantly solved. I was waiting for my light to get lit. Duttsit rocks
SVP
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26 Dec 2005, 20:24
duttsit wrote:
2/7 or 28%

let:
q : initial quatity purchased in $x thus 1.4q = new quantity in$x

economise = old price/ounce - new price / ounce
= x/q - x/(1.4q) = 2/7 x/q = 2/7 of original price/ounce

yup, really elegent and ........cute
26 Dec 2005, 20:24
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