Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

It is currently 18 Jul 2019, 15:34

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

In July the price of a stock increased by 10 percent. In August, it de

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Senior RC Moderator
User avatar
V
Status: ----__----___-----____-----
Joined: 02 Nov 2016
Posts: 3062
Location: Pakistan
GPA: 3.39
In July the price of a stock increased by 10 percent. In August, it de  [#permalink]

Show Tags

New post 23 Dec 2018, 09:39
2
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

79% (01:36) correct 21% (01:27) wrong based on 25 sessions

HideShow timer Statistics


In July the price of a stock increased by 10 percent. In August, it declined by 20 percent. If in September the price increased by 10 percent, by what percent of the original July price has the stock changed in price from the start of July to the end of September?

A. 0%
B. 3.2%
C. 4.4%
D. 20%
E. 40%

_________________
New Project RC Butler 2019 - Practice 2 RC Passages Everyday
Final days of the GMAT Exam? => All GMAT Flashcards.
This Post Helps = Press +1 Kudos
Best of Luck on the GMAT!!
Manager
Manager
User avatar
G
Status: In last prep stage
Joined: 11 Jun 2017
Posts: 155
GMAT 1: 630 Q44 V33
GMAT 2: 680 Q47 V37
GPA: 3.2
Premium Member
In July the price of a stock increased by 10 percent. In August, it de  [#permalink]

Show Tags

New post 23 Dec 2018, 09:52
SajjadAhmad wrote:
In July the price of a stock increased by 10 percent. In August, it declined by 20 percent. If in September the price increased by 10 percent, by what percent of the original July price has the stock changed in price from the start of July to the end of September?

A. 0%
B. 3.2%
C. 4.4%
D. 20%
E. 40%


Let =100, ..July Start
10 % inc=110 ..July End
20% dec=88 ..Aug end
10% inc=96.8 ..Sept end
To find -by what percent of the original July price has the stock changed in price from the start of July to the end of September
100 to 96.8 =? % .... Ans =3.2%
Answer:B

_________________
Thanks,
Ankit
Target Score:730+

If the post was useful,please send the kudos
Intern
Intern
avatar
B
Joined: 24 Jun 2018
Posts: 35
Re: In July the price of a stock increased by 10 percent. In August, it de  [#permalink]

Show Tags

New post 23 Dec 2018, 14:19
Answer is B ie. 3.2%

Let the Price of stock be P at the end of June.

By the end of July, it increased by 10%. Hence became 1.1P.

It then fell at the end of August by 20% ie. became .8 times of what it was when we started in August. Hence became .8 x 1.1 x P.

It then again rose by 10% by the time we reached the end of September. Hence became, 1.1 x . 8 x 1.1 x P ie. .968P.

Subtracting .968 from 1, we get .032.

Hence the total change is 3.2% reduction in P by the time we reached the end of September.
GMAT Club Bot
Re: In July the price of a stock increased by 10 percent. In August, it de   [#permalink] 23 Dec 2018, 14:19
Display posts from previous: Sort by

In July the price of a stock increased by 10 percent. In August, it de

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne