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Old 04-20-2006, 06:02 PM   #1
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Learning a bunch of crap we'll never use

Mods, I know this might seem like this doesn't belong in this forum, but bear with me, if you will. Here's the situation:

My sister just got a deal to buy 500 sq yards of carpet and 500 sq yards of tiling for a building she's renovating. It cost her $9600 after a 10% discount. Her best friend just bought 60 square yards of carpeting and 30 square yards of tiling for $1080 at the same place. Then yesterday she was talking to her boss and found out he got carpet and tiles at the same place. He bought 50 square yards of carpet and 10 square yards of tiles for $840. He said he did not receive a discount and he doesn't think that she really got 10% off her larger purchase either.

I'm just curious to know if anyone here can tell me if the store lied to her or not, and if so explain why.
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Old 04-20-2006, 06:10 PM   #2
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surely you're not saying that they all bought the exact same carpet and tiling???? A little unbelievable!

Me thinks they bought different carpets and tiles of different quality and price, therefore comparing price/sq across the 3 of them doesn't work.
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Old 04-20-2006, 06:33 PM   #3
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I don't know about you, but my fifth graders are taught to figure area, perimeter, and percentages.
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Old 04-20-2006, 07:59 PM   #4
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Quote:
Originally posted by martha
I don't know about you, but my fifth graders are taught to figure area, perimeter, and percentages.
Did you move up a greade or something?

My third graders are taught area and perimeter.....
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Old 04-20-2006, 08:02 PM   #5
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Quote:
Originally posted by martha
I don't know about you, but my fifth graders are taught to figure area, perimeter, and percentages.
So maybe you could ask your fifth graders to answer the question instead of denigrate the poster.
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Old 04-20-2006, 08:46 PM   #6
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Re: Learning a bunch of crap we'll never use

Quote:
Originally posted by maycocksean
My sister just got a deal to buy 500 sq yards of carpet and 500 sq yards of tiling for a building she's renovating. It cost her $9600 after a 10% discount. Her best friend just bought 60 square yards of carpeting and 30 square yards of tiling for $1080 at the same place. Then yesterday she was talking to her boss and found out he got carpet and tiles at the same place. He bought 50 square yards of carpet and 10 square yards of tiles for $840. He said he did not receive a discount and he doesn't think that she really got 10% off her larger purchase either.

I'm just curious to know if anyone here can tell me if the store lied to her or not, and if so explain why.
Your sister spent $19.20 per square yard of carpet and tiling. Without the 10% discount, the cost would have been $10,666, meaning that it would have been $21.33 per square yard of carpet and tiling.

Her best friend spent $18.00 per square yard of carpet and half a yard of tiling.

Her boss spent $16.80 per square yard of carpet and 1/5 of a yard of tiling.

Not a very accurate comparison here, considering I have no idea if carpet or tiling is more expensive, not to mention that the latter two measurements deal in fractions of a yard of tiling here. However, assuming that my calculations are correct here, none of those prices seem all that out of line.

But I'll defer to the gaggle of elementary and high school educators here. I always hated story problems in math.

Melon
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Old 04-20-2006, 08:49 PM   #7
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Quote:
Originally posted by indra


So maybe you could ask your fifth graders to answer the question instead of denigrate the poster.

good idea
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Old 04-20-2006, 08:58 PM   #8
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I am buying carpet and tile all the time.

If it were ceramic tile, stone tile, or something along that order it would cost more than carpet.

Therefore, her purchase of 1/2 carpet and 1/2 tile explains why she paid more per yard (even with a discount).
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Old 04-20-2006, 08:59 PM   #9
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So far no one has actually answered my question. Was my sister lied to about the discount or not? If she was explain how you know. In answer to adrball's question, I'm guessing they may not have ordered the same style or color but the basic price per square yard was the same.

No offense taken (though thanks for "sticking up for me", Indra).

I personally doubt that any fifth grade class could answer this question, and what I'm really wondering is whether adults (or high school students) can.

Again, there is a point to all of this. I'm gonna wait a little longer though to see who answers the question before I explain further what's on my mind.
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Old 04-20-2006, 09:05 PM   #10
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Quote:
Originally posted by maycocksean
So far no one has actually answered my question. Was my sister lied to about the discount or not? If she was explain how you know. In answer to adrball's question, I'm guessing they may not have ordered the same style or color but the basic price per square yard was the same.
Fine. If we're to make a sweeping assumption that a square yard of tiling and a square yard of carpet are identical in cost...

Sister = $9.60/sq. yard ($10.67/sq. yard w/o the discount)

Best friend = $12.00/sq. yard

Boss = $14.00/sq. yard

Beyond that bad assumption, I'll chalk it up to "not enough information to answer the problem correctly." But this is my wild guess.

Melon
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Old 04-20-2006, 09:05 PM   #11
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Sorry, several people DID answer my question while I was writing that post.

Thanks for your responses. mOre in a minute.
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Old 04-20-2006, 09:05 PM   #12
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Too many numbers and multiplying for my feeble mind to handle, sorry












Robert Kennedy sucked at math too...you don't have to be able to add numbers that's what you hire people to do in politics
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Old 04-20-2006, 09:15 PM   #13
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Quote:
Originally posted by maycocksean
So far no one has actually answered my question.

Your sister paid $9.60 per yard with discount. $9600 divided by 1000
$10.67 without discounts.

Her best friend paid $12.00 per yard. $1080 divided by 90

Her boss paid $14.00 per yard. $840 divided by 60

Your sister was undercharged.


(Melon check your math)
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Old 04-20-2006, 09:17 PM   #14
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Quote:
Originally posted by deep
(Melon check your math)
We have identical figures.

Of course, the first time around, I overthought the question. But, at the same time, is carpet and tiling *ever* the same price?

Melon
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Old 04-20-2006, 09:23 PM   #15
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Re: Learning a bunch of crap we'll never use

Quote:
Originally posted by maycocksean




I'm just curious to know if anyone here can tell me if the store lied to her or not, and if so explain why.

Yes, they lied to her.
She got quite a bit more than 10% discount.
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