Joanna bought only $0.15 stamps and$0.29 stamps. How many : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 21 Jan 2017, 20:17

### 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

# Events & Promotions

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

# Joanna bought only $0.15 stamps and$0.29 stamps. How many

Author Message
Director
Joined: 01 Apr 2008
Posts: 897
Name: Ronak Amin
Schools: IIM Lucknow (IPMX) - Class of 2014
Followers: 28

Kudos [?]: 647 [0], given: 18

Joanna bought only $0.15 stamps and$0.29 stamps. How many [#permalink]

### Show Tags

22 Mar 2009, 20:51
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Joanna bought only $0.15 stamps and$0.29 stamps. How many $0.15 stamps did she buy? (1) She bought$4.40 worth of stamps.
(2) She bought an equal number of $0.15 stamps and$0.29 stamps.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Manager
Joined: 07 Feb 2009
Posts: 50
Followers: 0

Kudos [?]: 14 [1] , given: 1

### Show Tags

23 Mar 2009, 00:41
1
KUDOS

Suppose Joanna bought x $0.15 stamps and y$0.29 stamps.
So, first statement says that
4.4 = 0.15x+0.29y , only from this equation, we cant say anything about x or y. x and y may/may not take more than one value.

Second statement says x=y, this also doesn't tell anything about the value of x or y.

If we combine the two given conditions, we get:
4.4= 0.15x+0.29x
or, x=10

Hence, BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
Intern
Joined: 09 Mar 2009
Posts: 3
Location: Netherlands
Followers: 0

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

### Show Tags

23 Mar 2009, 04:28
A less mathematical approach:

Statement 1:
When you only know that she spent $4,40. She could have bought any combination of post stamps to reach$4,40

Statement 2:
When you only know she bought an equal number of stamps she could eighter have bought 1:1 (2 stamps) or 100:100 (200 stamps).

Statement 1&2: