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What is the value of x? (1) When x is multiplied by 8

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What is the value of x? (1) When x is multiplied by 8 [#permalink] New post 11 Jan 2010, 05:41
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 3 sessions
WANT TO VERIFY MY ANSWER WITH OA

What is the value of x?
(1) When x is multiplied by 8, the result is between 50 and 60.
(2) When x is doubled, the result is between 10 and 15.


i think the no is 7 & answer is C but OA is diff.
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Location: United States (NC)
Concentration: Strategy, Finance
Schools: UNC (Kenan-Flagler) - Class of 2013
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Re: value of x, simple [#permalink] New post 11 Jan 2010, 06:03
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vageesh wrote:
WANT TO VERIFY MY ANSWER WITH OA

What is the value of x?
(1) When x is multiplied by 8, the result is between 50 and 60.
(2) When x is doubled, the result is between 10 and 15.


i think the no is 7 & answer is C but OA is diff.


i think you are assuming X has to be an INTEGER which from the question it doesnt have to be.

So 50/8 = ~6.3 and 60/8 =~7.5
Now when you double any of them they should be between 10 and 15... which basically mean the entire range.

so answer is E?
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Re: value of x, simple [#permalink] New post 11 Jan 2010, 07:12
oh yes, silly mistake.. E is the answer
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Re: value of x, simple [#permalink] New post 12 Jan 2010, 07:40
5<x<7.5
6.25<x<7.5

x could be anything , even if we take A+B.
hence E
Re: value of x, simple   [#permalink] 12 Jan 2010, 07:40
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