data sufficiency problem

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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
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thestoryteller Says
Oh yeah... they just ask if it is an integer... they never asked for the value!

Yes.....
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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!
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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

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

Why dont you try them?

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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!!

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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.

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.

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@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. 😁
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