Discussion in 'Physics & Math' started by deicider, Mar 1, 2011.
What is the Cost of a book that costs 1$ plus half of its price?
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how sure are you?
Let us find out for sure, by proof:
The total unknown (x), = one half of the total (x/2), plus one dollar (1)
We'll use that equation to prove that:
If 2=2 is correct, then x=2 is also correct.
If x=2 is correct, then Arthur is correct.
Arthur is correct.
Cost is more or equal one dollar. Please Register or Log in to view the hidden image!
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The cost was 1$ regardless of howmany times "cost" was said. the only price mentioned was 1$ so half of that would be 50. The only other possible answer could be the "half" means an over all half to be added of the total again after the first, but that would be stupid >_>
I don't see x=2
Then read Keith1's post. It's quite simple.
Your claim of $1 fails:
The question was What is the Cost of a book that costs (1$ plus half of its price)?
I've added the brackets to make it clearer for you.
If, as you claim, it's $1 then half it's price is 50 cents, making the overall cost $1.50.
$1.50 != $1. Please Register or Log in to view the hidden image!
It was already done, but in algebra (Again)...
x - 1/2 (x) = 1
1/2 x = 1
x = 2
Are you 100% convinced?
But if you make a reduction to a store where the cost is half the price plus 1$? Please Register or Log in to view the hidden image!
This is a rather deceptive problem statement. The answer is 1.5$.
The cost of the book is $1 + 1/2cost .
You surmise that the cost of the book is $1.50
well half the cost of the books would then be .75 and
$1.75 != $1.50
so 1.5 is the wrong answer
Now lets look at it again with $2 being the answer
half the price of the book would then be $1
$1+1$ = $2
Yes I am positive the answer is $2
Half of $1.5 is 75 cents. $1 + 75 cents is $1.75.
$1.50 != $1.75.
Just want to gloat that for the first time in these threads I beat someone to the punch.
Then you'll have to wait.
Look at the time stamps on our posts... they're simultaneous. Please Register or Log in to view the hidden image!
And I'm sticking to that.
Lemme give a hint for the ones that are struggling.
Its definitely not 1.5.
Its one dollar PLUS half of the TOTAL price.
If the price was 1 dollar then the answer would be 1.5 but its not.
Should the thread have been named "Complicated Math Problem"?
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