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(1.9)^3

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(1.9)^3 [#permalink] New post 10 Jun 2018, 07:38
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Question Stats:

85% (00:45) correct 14% (00:00) wrong based on 7 sessions
Quantity A
Quantity B
\((1.9)^3\)
\((1.999)^2\)


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: (1.9)^3 [#permalink] New post 02 Jul 2018, 22:00
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Carcass wrote:
Quantity A
Quantity B
\((1.9)^3\)
\((1.999)^2\)


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.


Here;
From the question we can assume QTY A > QTY B

let us assume 1.9 = 2 and 1.999 = 2

Now QTY A = \(2^3 = 8\)

and QTY B = \(2^2 =4\)

Moreover 1.999 will always be less than 2 , similarly 1.9 will always be less than 2

But cube root > square root.

If the question tells us compare between \((1.9)^2\) and \((1.999)^2\) then in this case \((1.999)^2 > (1.9)^2\). This is because the roots of both the QTY are same and 1.999 is more close to 2 than 1.9
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Re: (1.9)^3   [#permalink] 02 Jul 2018, 22:00
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(1.9)^3

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