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The total interest earned on d dollars invested for 3 months

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The total interest earned on d dollars invested for 3 months [#permalink] New post 28 May 2019, 08:33
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Question Stats:

40% (00:11) correct 60% (01:07) wrong based on 10 sessions
\(d > 0\)

Quantity A
Quantity B
The total interest earned on d dollars invested for 3 months at 11 percent simple annual interest
\(\frac{11}{3} (\frac{d}{100})\) dollars


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: The total interest earned on d dollars invested for 3 months [#permalink] New post 28 May 2019, 18:56
Carcass wrote:
\(d > 0\)

Quantity A
Quantity B
The total interest earned on d dollars invested for 3 months at 11 percent simple annual interest
\(\frac{11}{3} (\frac{d}{100})\) dollars


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.



Explanation::

QTY A : The total interest earned on d dollars invested for 3 months at 11 percent simple annual interest =\(d * \frac{3}{12} * \frac{11}{100}\) =\(d * \frac{1}{4} * \frac{11}{100}\) = \(\frac{11}{4} * \frac{d}{100}\) (time is calculated in terms of years)

Hence QTY A < QTY B

Option B
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Re: The total interest earned on d dollars invested for 3 months   [#permalink] 28 May 2019, 18:56
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