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# Yesterday's closing price...

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Senior Manager
Joined: 20 Sep 2016
Posts: 454
Yesterday's closing price...  [#permalink]

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29 Sep 2017, 21:08
1
Yesterday's closing price of 2420 different stocks listed on a certain stock exchange were all different from today's closing prices. The number of stocks that closed at a higher price today than yesterday was 20 percent greater than the number that closed at a lower price. How many of the stocks closed at a higher price today than yesterday?

(A) 484

(B) 726

(C) 1100

(D) 1320

(E) 1694

Sent from my XT1562 using GMAT Club Forum mobile app

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Intern
Joined: 16 Mar 2017
Posts: 9
Concentration: Finance, Accounting
GMAT 1: 610 Q47 V27
GPA: 3.71
WE: Accounting (Other)
Re: Yesterday's closing price...  [#permalink]

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30 Sep 2017, 00:11
1
Hi!

The answer should be D. 1320

let the number of closing stocks with lower price = X
So, the number of closing stocks with higher price = 1.2*X

Therefore, X+1.2*X = 2420
Solving the equation above we find X=1100
So, number of stocks with higher closing price =1.2*X = 1.2*1100 = 1320

Hope it helps and please let me know if I am wrong at any point.

Thanks.
Math Expert
Joined: 02 Sep 2009
Posts: 50670
Re: Yesterday's closing price...  [#permalink]

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30 Sep 2017, 00:24
Yesterday's closing price of 2420 different stocks listed on a certain stock exchange were all different from today's closing prices. The number of stocks that closed at a higher price today than yesterday was 20 percent greater than the number that closed at a lower price. How many of the stocks closed at a higher price today than yesterday?

(A) 484

(B) 726

(C) 1100

(D) 1320

(E) 1694

Sent from my XT1562 using GMAT Club Forum mobile app

Discussed here: yesterday-s-closing-prices-of-2-420-different-stocks-listed-138933.html

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
Re: Yesterday's closing price... &nbs [#permalink] 30 Sep 2017, 00:24
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# Yesterday's closing price...

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