GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 06 Dec 2019, 15:37

### 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

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

# In Tom’s favorite game he has a certain average for the

Author Message
TAGS:

### Hide Tags

Intern
Joined: 09 Feb 2012
Posts: 47
In Tom’s favorite game he has a certain average for the  [#permalink]

### Show Tags

27 Feb 2012, 12:31
00:00

Difficulty:

(N/A)

Question Stats:

75% (00:00) correct 25% (02:50) wrong based on 7 sessions

### HideShow timer Statistics

In Tom’s favorite game he has a certain average for the first 25 rounds. After scoring 140 points in the 26th his average improves by 3 points. What is his new average after the 26th round?

65!

P.S. No answer choices were given
Manager
Joined: 22 Feb 2012
Posts: 84
Schools: HBS '16
GMAT 1: 740 Q49 V42
GMAT 2: 670 Q42 V40
GPA: 3.47
WE: Corporate Finance (Aerospace and Defense)

### Show Tags

27 Feb 2012, 13:35
I was able to solve this in a somewhat convoluted way:

I set the Total points for 25 tries to be X

so x/25 +3 = (x +140)/26

Solving for X, X = 1550

Old Avg = 1550/25 = 62
New Avg = 62+3 = 65
Math Expert
Joined: 02 Sep 2009
Posts: 59587

### Show Tags

27 Feb 2012, 13:43
NYC5648 wrote:
Hi all,

could someone explain to me how to solve this problem:

In Tom’s favorite game he has a certain average for the first 25 rounds. After scoring 140 points in the 26th his average improves by 3 points. What is his new average after the 26th round?

Many thanks and good luck to all of you!

P.S. No answer choices were given

Step by step solution:

Let Tom's average for the first 25 rounds be x, then the sum of the points will be 25x. After scoring 140 the new sum will be 25x+140 and the new average will be (25x+140)/26, which is given to equal to x+3: (25x+140)/26=x+3 --> x=62 --> x+3=65.
_________________
Intern
Joined: 09 Feb 2012
Posts: 47
Re: In Tom’s favorite game he has a certain average for the  [#permalink]

### Show Tags

27 Feb 2012, 14:42
Re: In Tom’s favorite game he has a certain average for the   [#permalink] 27 Feb 2012, 14:42
Display posts from previous: Sort by