Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 04 Dec 2013, 18:43

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Last year Deparment Store x had a sales total for December

Author Message
TAGS:
Intern
Joined: 23 Oct 2007
Posts: 1
Followers: 0

Kudos [?]: 0 [0], given: 0

Last year Deparment Store x had a sales total for December [#permalink]  03 Dec 2007, 17:11
Last year Deparment Store x had a sales total for December that was 4 times the average (arithmetic mean) of the monthly sales totals for January through November. The sales total for December was what fraction of the sales total for the year?

A. 1/4
B. 4/15
C. 1/3
D. 4/11
E. 4/5
VP
Joined: 09 Jul 2007
Posts: 1113
Location: London
Followers: 6

Kudos [?]: 63 [0], given: 0

Re: Need help solving [#permalink]  03 Dec 2007, 17:28
kamal101 wrote:
Last year Deparment Store x had a sales total for December that was 4 times the average (arithmetic mean) of the monthly sales totals for January through November. The sales total for December was what fraction of the sales total for the year?

A. 1/4
B. 4/15
C. 1/3
D. 4/11
E. 4/5

December Sales = D

Arithmetic mean for Jan thourgh Nov=X,
sales total for Jan-Nov = 11X
Sales total for the year =11X+D
December sales total =4X
D/(11X+D)?

=4x/(11x+4x)=4x/15x=4/15
B
Director
Joined: 09 Aug 2006
Posts: 770
Followers: 1

Kudos [?]: 21 [0], given: 0

Re: Need help solving [#permalink]  03 Dec 2007, 21:54
kamal101 wrote:
Last year Deparment Store x had a sales total for December that was 4 times the average (arithmetic mean) of the monthly sales totals for January through November. The sales total for December was what fraction of the sales total for the year?

A. 1/4
B. 4/15
C. 1/3
D. 4/11
E. 4/5

Let avg for 11 mos. = 10
Therefore, Dec = 40
Year total = 11*10 + 40 = 150

Answer = 40/150 = 4/15 = B
CEO
Joined: 29 Mar 2007
Posts: 2604
Followers: 16

Kudos [?]: 157 [0], given: 0

Re: Need help solving [#permalink]  03 Dec 2007, 21:59
kamal101 wrote:
Last year Deparment Store x had a sales total for December that was 4 times the average (arithmetic mean) of the monthly sales totals for January through November. The sales total for December was what fraction of the sales total for the year?

A. 1/4
B. 4/15
C. 1/3
D. 4/11
E. 4/5

JtoN/11=x D/1=4x D=4x JtoN=11x

total sales: 4x+11x = 15x

so we want D/total sales ---> 4x/15x = 4/15

B
Re: Need help solving   [#permalink] 03 Dec 2007, 21:59
Similar topics Replies Last post
Similar
Topics:
Questions 5-6 Sales manager: Last year the total number of 12 21 Jan 2006, 22:50
here's easy pickin's: Last year Department store X had a 4 30 Jan 2008, 14:06
3 There are 6 stores in town that had a total of 20 visitors 7 08 Sep 2011, 22:53
1 Sales manager: Last year the total number of meals sold in 4 20 Feb 2012, 02:29
3 A store reported total sales of \$385 million for February of 3 07 Dec 2012, 04:31
Display posts from previous: Sort by