data sufficiency problem

26 Posts  ·  10 Users
About this group
Q) find a>7.5 or not (i) a>7.4 (ii) a>7.6 a) 1 b)2 c)3 d)4 1-> option (i) is sufficient to find the sol. 2-> option (ii) is sufficient to find the sol. 3-> two are necessary 4-> two are not enough
Page 1 of 3

(2) is sufficient to answer

Commenting on this post has been disabled by the moderator.
thestoryteller Says
Oh yeah... they just ask if it is an integer... they never asked for the value!

Yes.....
Commenting on this post has been disabled by the moderator.
Why E?

Statement (2) alone is sufficient right?
n^2 = 25
n = +- 5

(100 - n)/n when n = +5 ; (100-5)/5 = 95/5 = 19

(100 - n)/n when n = -5 ; (100+5)/5 = 105/5 = 21

We can conclude that n is an integer!!


Oh yeah... they just ask if it is an integer... they never asked for the value!
Commenting on this post has been disabled by the moderator.

Quote:
Originally Posted by nairpraveenk View Post
Try some more.......
If
w + z = 28, what is the value of wz ?

(1)
w and z are positive integers.
(2) w and z are consecutive odd integers.


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.








thestoryteller:
B -> Statement (2) ALONE is sufficeint, but statement (1) alone is not sufficient.

@thestoryteller
Affirmative dude.....


These are typical GMAT problems,/ I have posted few more in a new thread

Link:
http://www.pagalguy.com/discussions/gmat-problem-solving-discussions-25019823

Why dont you try them?

Commenting on this post has been disabled by the moderator.

Why E?

Statement (2) alone is sufficient right?
n^2 = 25
n = +- 5

(100 - n)/n when n = +5 ; (100-5)/5 = 95/5 = 19

(100 - n)/n when n = -5 ; (100+5)/5 = 105/5 = 21

We can conclude that n is an integer!!

Commenting on this post has been disabled by the moderator.
Well I will psot a few problems......

Try this.....



If n is an integer, is (100 -n)/ n an integer ?(1) n > 4
(2) n2 = 25



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.






Is the answer E?
Commenting on this post has been disabled by the moderator.
Try some more.......


If
w + z = 28, what is the value of wz ?
(1) w and z are positive integers.
(2) w and z are consecutive odd integers.


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.


B -> Statement (2) ALONE is sufficeint, but statement (1) alone is not sufficient.

Commenting on this post has been disabled by the moderator.

Try some more.......

If w + z = 28, what is the value of wz ?
(1)
w and z are positive integers.
(2)
w and z are consecutive odd integers.


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.

Commenting on this post has been disabled by the moderator.

Well I will psot a few problems......

Try this.....



If n is an integer, is (100 -n)/ n an integer ?(1) n > 4
(2) n^2 = 25



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.


Commenting on this post has been disabled by the moderator.
@nairpraveenk
I think that the answer to the very first questn is (ii). Only statement 2 is sufficient.. What purpose will a>7.4, serve??

Oops, yes ess_a, you are correct.
Thanks. 😁
Commenting on this post has been disabled by the moderator.