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When the stock market opened yesterday, the price of a share

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When the stock market opened yesterday, the price of a share [#permalink]

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New post 31 Mar 2012, 21:16
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When the stock market opened yesterday, the price of a share of stock X was 10 1/2. When the market closed, the price was 11 1/4. Of the following, which is closest to the percent increase in the price of stock X?

A. 0.5%
B. 1.0%
C. 6.7%
D. 7.1%
E. 7.5%
[Reveal] Spoiler: OA

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Last edited by Bunuel on 01 Apr 2012, 02:05, edited 1 time in total.
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Re: Stock Prices [#permalink]

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boomtangboy wrote:
15. When the stock market opened yesterday, the price of a share of stock X was . When the market closed, the price was . Of the following, which is closest to the percent increase in the price of stock X?
(A) 0.5%
(B) 1.0%
(C) 6.7%
(D) 7.1%
(E) 7.5%


Question should read:

When the stock market opened yesterday, the price of a share of stock X was 10 1/2. When the market closed, the price was 11 1/4. Of the following, which is closest to the percent increase in the price of stock X?

A. 0.5%
B. 1.0%
C. 6.7%
D. 7.1%
E. 7.5%

General formula for percent increase or decrease, (percent change): \(Percent=\frac{Change}{Original}*100\).

So, the percent increase in the price of stock X is \(\frac{\frac{45}{4}-\frac{21}{2}}{\frac{21}{2}}*100=\frac{50}{7}%\approx{7.1%}\).

Answer: D.
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Re: When the stock market opened yesterday, the price of a share [#permalink]

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New post 01 Apr 2012, 05:20
Thanks Bunuel.....
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Re: When the stock market opened yesterday, the price of a share [#permalink]

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New post 30 Apr 2017, 20:02
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Re: When the stock market opened yesterday, the price of a share [#permalink]

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New post 30 Apr 2017, 23:19
boomtangboy wrote:
When the stock market opened yesterday, the price of a share of stock X was 10 1/2. When the market closed, the price was 11 1/4. Of the following, which is closest to the percent increase in the price of stock X?

A. 0.5%
B. 1.0%
C. 6.7%
D. 7.1%
E. 7.5%


Opening price = \(10.50\)
Closing price = \(11.25\)

Increase in price = \(0.75\)

Percent increase in the price of stock = \(\frac{0.75}{10.50}*100\)

So the answer is (D) 7.14%
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Re: When the stock market opened yesterday, the price of a share   [#permalink] 30 Apr 2017, 23:19
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