(2) is sufficient to answer

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

Yes.....

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!

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?

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!!

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

Try this.....

Ifnis an integer, is (100 -n)/ nan 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?

Try some more.......

Ifw + z =28, what is the value ofwz?

(1)wandzare positive integers.

(2)wandzare 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.

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.

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.

@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. 😁