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Perfect square

n is a positive integer and also a perfect square, is the factors of n a:

a) odd

b) square number

c) prime


OA A but as far as I know, 1 is also a perfect square and 1 only has 2 factors....

by cartera

Sat Feb 07, 2009 11:29 pm
Forum: Problem Solving
Topic: Perfect square
Replies: 4
Views: 875

Even

is x^2 + y even? x and y are positive

1) x, y are consecutive integers
2) x + 2y = 1

OA D

by cartera

Sat Feb 07, 2009 11:12 pm
Forum: Problem Solving
Topic: Even
Replies: 7
Views: 1347

value of n

1/[10^(n+1)] < 0.00625 < 1/[10^(n+1)]

what is the value of n?

by cartera

Sat Feb 07, 2009 11:11 pm
Forum: Problem Solving
Topic: value of n
Replies: 3
Views: 905
by cartera

Tue Feb 03, 2009 10:11 pm
Forum: Critical Reasoning
Topic: Farmers
Replies: 13
Views: 1970
by cartera

Sun Feb 01, 2009 6:30 am
Forum: Critical Reasoning
Topic: Princeton Verbal CR 15
Replies: 7
Views: 1406

Value of X

284.If we know X^2 = X+1, what is X^ 3?

[spoiler]A: 2X+1[/spoiler]

by cartera

Thu Jan 29, 2009 7:41 am
Forum: Problem Solving
Topic: Value of X
Replies: 1
Views: 759

Value of X

302.Positive integer X and Y. If X is divided by 15, remainder is 1; if X+Y is divided by 15, remainder is 1. What is min of Y?

by cartera

Thu Jan 29, 2009 7:26 am
Forum: Problem Solving
Topic: Value of X
Replies: 4
Views: 797

Geometry

Image

In the above rectangle ABCD where AD is the upper line of the rectangle and BC is the lower line of the rectangle , if the area is 84 and the distance between BF and FC 4:3, what is the size of the triangle?

by cartera

Thu Jan 29, 2009 6:37 am
Forum: Problem Solving
Topic: Geometry
Replies: 2
Views: 1075

Imo A, what is OA? I think this should be a LSAT question

by cartera

Sun Jan 25, 2009 8:39 pm
Forum: Critical Reasoning
Topic: Flight 409
Replies: 8
Views: 2204

Inequality

If 2y<15+3x and Y>2, which of the following is true:

I. -5<x<3
II. x>-5/3
III. x<3/5

by cartera

Sat Jan 24, 2009 6:53 pm
Forum: Problem Solving
Topic: Inequality
Replies: 4
Views: 995

Savings


A guy saves $1200 in Jan, Feb and Mar. Ratio of savings of Jan:(Feb+Mar)=1:3. Ratio of Savings in Feb:(Jan+Mar)=7:2, what was the savings of march?


A 200
B 300
C 400
D 500
E 600


OA A

by cartera

Sat Jan 24, 2009 1:11 am
Forum: Problem Solving
Topic: Savings
Replies: 3
Views: 992
by cartera

Fri Jan 23, 2009 3:14 am
Forum: Critical Reasoning
Topic: Treatment
Replies: 33
Views: 9978

Inequality

9*y-4*x^2*y > 0?
1. y>0
2. x> -3/2

OA is
SPOILER: E
but I think it should be B:

9*y-4*x^2*y > 0 =&#12297;9*y>4*x^2*y => 9/4>x^2
===> 2. x> -3/2 => x^2>9/4 then, B

by cartera

Thu Jan 22, 2009 10:45 pm
Forum: Data Sufficiency
Topic: Inequality
Replies: 3
Views: 911

x^3y^2z>0?
(1)xz<0
(2)y>0

with the 1st statement, what if y is 0? (x^3)(0^2)z=0--then it is not >0, then statement 1 is not valid...

by cartera

Thu Jan 22, 2009 9:24 am
Forum: Data Sufficiency
Topic: Power
Replies: 4
Views: 1386

Root

If r and s are root of x^2+bx+c=0, rs<0?
1). b<0
2). c<0

OA B

I dont catch it

by cartera

Thu Jan 22, 2009 8:16 am
Forum: Data Sufficiency
Topic: Root
Replies: 5
Views: 1030