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The value of a "Tin-Rin" stock in the stock market decreased by 15% in

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Bunuel
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The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   21 Jun 2016, 03:10
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The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.
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mohshu
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   21 Jun 2016, 07:06
Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


did the value of stock decrease 15% per year in last two years?
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Divyadisha
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   21 Jun 2016, 08:49
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Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


Let the stock value was x.

x* 0.85 * 1.07= 440

x= 440/0.85*1.07= 490 (approximately)

A is the answer
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The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   21 Jun 2016, 10:06
Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


i m getting 483 as answer...
no choice seems to be the same...
can anyone confirm please

-15+7-(15*7)/100=-9.05% net decrease
let initial price be X
X(1-9.05/100)=440
X=44000/90.95 = ~483
:roll:

Ans A seems closer
Bunuel please confirm

thanks
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rohit8865
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   21 Jun 2016, 10:13
mohshu wrote:
Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


did the value of stock decrease 15% per year in last two years?

No its only one time decreased to 15% in lastt 2 years.
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   04 Jul 2016, 01:22
Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


i m getting 483 as answer...
no choice seems to be the same...
can anyone confirm please

-15+7-(15*7)/100=-9.05% net decrease
let initial price be X
X(1-9.05/100)=440
X=44000/90.95 = ~483
:roll:

Ans A seems closer
Bunuel please confirm

thanks

------------------------------------

Yes I agree. The answer should be of the form 48--. I guess if the question is correct, we will just have to go with the closest option.....
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iqbalfiery
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   06 Jul 2016, 06:27
rohit8865 wrote:
Bunuel wrote:
The value of a "Tin-Rin" stock in the stock market decreased by 15% in the last two years. The economic experts believe that the value of the stock will increase by 7% during the following year, which will make the value $440. What was the approximate price of the stock two years ago?

A. $473.
B. $464.
C. $455.
D. $445.
E. $430.


i m getting 483 as answer...
no choice seems to be the same...
can anyone confirm please

-15+7-(15*7)/100=-9.05% net decrease
let initial price be X
X(1-9.05/100)=440
X=44000/90.95 = ~483
:roll:

Ans A seems closer
Bunuel please confirm

thanks


You are getting the correct answer... The EXACT answer is 483.7822979659153 (done in the calculator)
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HMC
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   06 Jul 2016, 07:05
Okay....Since this involves calculation to a good extent ... any tips in general on fast calculations OR approximations?
May be taking this one as example how did you manipulate numbers to arrive at the final answer. {In shortest possible time}
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink] New post   23 Apr 2024, 05:15
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Re: The value of a "Tin-Rin" stock in the stock market decreased by 15% in [#permalink]
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