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Re: To the nearest dollar, how much money needs to be invested [#permalink]
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The GRE questions posed during the test are conceived to be solved in a certain amount of time and usually without calculator.

Nonetheless, you do have during your official exam.

Regards
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Re: To the nearest dollar, how much money needs to be invested [#permalink]
YMAkib wrote:
Let the principal amount is P. In here we have used the multiplier concept for compounding quarterly.
So, 12000=p(1+8%/4)^(3*4) or, p ~ 9500
So A is the answer.

you did not turn 8/4 into percent form, it's 8/4/100
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Re: To the nearest dollar, how much money needs to be invested [#permalink]
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Carcass wrote:
The GRE questions posed during the test are conceived to be solved in a certain amount of time and usually without calculator.

Nonetheless, you do have during your official exam.

Regards



how do we calculate this without a calculator?
I mean, the exact figures
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Re: To the nearest dollar, how much money needs to be invested [#permalink]
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Notice how this is not a perfect question, in fact, it is not an official question.

An official question has perfectly all the answer choices in ascending order. So the answer , that is A, should be in the second place. Therefore, B.

Aside from this consideration the question is pretty straightforward if you use the answer choices.

start with B

9,326 *1.08=10,072

this value per 1.08 another two times (3 in total) and you will get a result a bit far from 12,000

At this point is reasonable to think the answer is A which is slightly higher as value

30 seconds

see more here for % https://gre.myprepclub.com/forum/gre-math- ... tml#p81625

or here for compound interest https://gre.myprepclub.com/forum/gre-quant ... 18388.html
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