# Simple Math Question

Discussion in 'Physics & Math' started by deicider, Mar 1, 2011.

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5. ### deicidergot omnicideadRegistered Senior Member

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how sure are you?

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1.50 .....

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(-_-)

9. ### keith1Guest

Let us find out for sure, by proof:

The total unknown (x), = one half of the total (x/2), plus one dollar (1)

That is:
x=(x/2)+1

We'll use that equation to prove that:
x=2

So:
2=(2/2)+1
2=1+1
2=2

If 2=2 is correct, then x=2 is also correct.
If x=2 is correct, then Arthur is correct.
Arthur is correct.

10. ### EmilValued Senior Member

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Cost is more or equal one dollar.

11. ### EmptyForceOfChiBannedBanned

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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

12. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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No.

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.

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:shrug:

14. ### siphraRegistered Senior Member

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It was already done, but in algebra (Again)...

x= 1/2(x)+1
x - 1/2 (x) = 1
1/2 x = 1
x = 2

15. ### deicidergot omnicideadRegistered Senior Member

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Are you 100% convinced?

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18. ### siphraRegistered Senior Member

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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 verified. Yes I am positive the answer is$2

19. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Half of $1.5 is 75 cents.$1 + 75 cents is $1.75.$1.50 != \$1.75.

20. ### siphraRegistered Senior Member

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Just want to gloat that for the first time in these threads I beat someone to the punch.

21. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Then you'll have to wait.
Look at the time stamps on our posts... they're simultaneous.

And I'm sticking to that.

22. ### deicidergot omnicideadRegistered Senior Member

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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.

23. ### siphraRegistered Senior Member

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Should the thread have been named "Complicated Math Problem"?