Stock - Number of shares
V ------------------- 68
W ----------------- 112
X ------------------- 56
Y ------------------- 94
Z ------------------- 45
The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami?
A 4
B. 6
C. 9
D. 15
E. 20
OA D
Source: GMAT Prep
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
Stock - Number of shares V ------------------- 68 W -------
This topic has expert replies
-
BTGmoderatorDC
- Moderator
- Posts: 7187
- Joined: Thu Sep 07, 2017 4:43 pm
- Followed by:23 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
-
GMATGuruNY
- GMAT Instructor
- Posts: 15539
- Joined: Tue May 25, 2010 12:04 pm
- Location: New York, NY
- Thanked: 13060 times
- Followed by:1906 members
- GMAT Score:790
BTGmoderatorDC wrote:Stock - Number of shares
V ------------------- 68
W ----------------- 112
X ------------------- 56
Y ------------------- 94
Z ------------------- 45
The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami?
A 4
B. 6
C. 9
D. 15
E. 20
Original range = (greatest number of shares) - (smallest number of shares) = 112-45 = 67.
After 24 shares of Y are purchased, new Y = 94+24 = 118.
After 20 shares of X are sold, new X = 56-20 = 36.
New range = (new greatest number of shares) - (new smallest number of shares) = 118-36 = 82.
Increase in the range = (new range) - (original range) = 82-67 = 15.
The correct answer is D.
Faster approach:
The greatest value changes from 112 to 118, increasing the range by 6.
The smallest value changes from 45 to 36, increasing the range by 9.
Total increase in the range = 6+9 = 15.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
GMAT/MBA Expert
-
[email protected]
- Elite Legendary Member
- Posts: 10392
- Joined: Sun Jun 23, 2013 6:38 pm
- Location: Palo Alto, CA
- Thanked: 2867 times
- Followed by:511 members
- GMAT Score:800
Hi All,
"Range" questions come from the broader category of statistics, which will show up a couple of times on the GMAT. The range of a group of numbers is the difference between the largest number and the smallest number.
Based on the original number of shares, the range would be: 112 - 45 = 67
However, the prompt tells us that two of the values in the table are going to change. After the changes, the values will be:
V 68
W 112
X 36
Y 118
Z 45
Now the range is 118 - 36 = 82
The INCREASE in the range requires us to compare the "new" range to the "old" range: 82 - 67 = 15
Final Answer: D
GMAT assassins aren't born, they're made,
Rich
"Range" questions come from the broader category of statistics, which will show up a couple of times on the GMAT. The range of a group of numbers is the difference between the largest number and the smallest number.
Based on the original number of shares, the range would be: 112 - 45 = 67
However, the prompt tells us that two of the values in the table are going to change. After the changes, the values will be:
V 68
W 112
X 36
Y 118
Z 45
Now the range is 118 - 36 = 82
The INCREASE in the range requires us to compare the "new" range to the "old" range: 82 - 67 = 15
Final Answer: D
GMAT assassins aren't born, they're made,
Rich
GMAT/MBA Expert
-
Scott@TargetTestPrep
- GMAT Instructor
- Posts: 7274
- Joined: Sat Apr 25, 2015 10:56 am
- Location: Los Angeles, CA
- Thanked: 43 times
- Followed by:29 members
We recall that the formula for range is:BTGmoderatorDC wrote:Stock - Number of shares
V ------------------- 68
W ----------------- 112
X ------------------- 56
Y ------------------- 94
Z ------------------- 45
The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami?
A 4
B. 6
C. 9
D. 15
E. 20
Range = greatest value - least value
Since the greatest number of shares is 112 and the least number of shares is 45, before selling stock X and buying stock Y, the current range is 112 - 45 = 67.
After 20 shares of stock X are sold and 24 shares of stock Y are purchased, the greatest number of shares is 94 + 24 = 118 and the least number of shares is 56 - 20 = 36. The new range would be118 - 36 = 82. Thus, the increase in the range is 82 - 67 = 15 shares.
Answer: D
Scott Woodbury-Stewart
Founder and CEO
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews
