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If x>0.9, which of the following options can be the value

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by Max@Math Revolution » Sun Jan 24, 2016 3:50 pm
If x>0.9, which of the following options can be the value of x?


A. 0.9^2
B. √(0.9)
C. 0.09
D. 0.9
E. 0.9^3


* A solution will be posted in two days.
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Source: — Data Sufficiency |
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by Max@Math Revolution » Wed Jan 27, 2016 5:29 pm
If x>0.9, which of the following options can be the value of x?

A. 0.9^2
B. √(0.9)
C. 0.09
D. 0.9
E. 0.9^3


--> If 0<x<1, it becomes x^3<x^2<x<√x<1<1/x and 0.9<√(0.9).
Therefore, the answer is B.
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by Scott@TargetTestPrep » Tue Dec 12, 2017 9:37 am
Max@Math Revolution wrote:If x>0.9, which of the following options can be the value of x?


A. 0.9^2
B. √(0.9)
C. 0.09
D. 0.9
E. 0.9^3
Since x > 0.9, and since √(0.9) is approximately equal to 0.949, which is greater than 0.9, √(0.9) is a possible value of x.

Answer: B

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