simple problem ....

This topic has expert replies
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Sat Apr 12, 2008 8:51 am
Thanked: 1 times

simple problem ....

by gibran » Mon May 19, 2008 10:45 am
If the symbol ## represents either addition, subtraction, multiplication, or division, what is the value of 6 ## 2?
(1) 10 ## 5 = 2
(2) 4 ## 2 = 2
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.

PS - The symbol shown in the actual question is an inverted triangle .... but I couldn't get that image here ... so have used an alternate symbol ....

IMO, it is D but OA says A.

Senior | Next Rank: 100 Posts
Posts: 58
Joined: Fri Apr 04, 2008 12:36 pm
Thanked: 4 times
GMAT Score:680

Re: simple problem ....

by mim3 » Mon May 19, 2008 12:06 pm
gibran wrote:If the symbol ## represents either addition, subtraction, multiplication, or division, what is the value of 6 ## 2?
(1) 10 ## 5 = 2
(2) 4 ## 2 = 2
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.

PS - The symbol shown in the actual question is an inverted triangle .... but I couldn't get that image here ... so have used an alternate symbol ....

IMO, it is D but OA says A.
For statement 2- the symbol could be division or subtraction which would yield two different values for 6 ## 2. Insufficient.

Master | Next Rank: 500 Posts
Posts: 438
Joined: Mon Feb 12, 2007 9:44 am
Thanked: 26 times

Re: simple problem ....

by chidcguy » Tue May 20, 2008 5:06 pm
gibran wrote:If the symbol ## represents either addition, subtraction, multiplication, or division, what is the value of 6 ## 2?
(1) 10 ## 5 = 2
(2) 4 ## 2 = 2
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.

PS - The symbol shown in the actual question is an inverted triangle .... but I couldn't get that image here ... so have used an alternate symbol ....

IMO, it is D but OA says A.
The Q is asking what is the ## operation out of these 4 op's

Statement 1

10 ## 5 =2

The only way for that to happen is ## is division

Statement 2

4 ##2 =2

Here ## can be / or -

Hence A