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z>1

Data Sufficiency
z>1

Is z> 1?
1) xyz = 1
2) xy (z ^ 2)> 1

by colakumarfanta

Thu May 20, 2010 11:17 pm
Forum: Data Sufficiency
Topic: z>1
Replies: 1
Views: 1006

divisible by

Data Sufficiency
divisible by

x is positive integer, is (x-1) (x +1) divisible by 24?
(1) x is not divisible by 3
(2) x-1 is divisible by 2

by colakumarfanta

Thu May 20, 2010 10:48 pm
Forum: Data Sufficiency
Topic: divisible by
Replies: 10
Views: 2069

b < 0

Data Sufficiency
b < 0

Given a-b <0, Is b < 0?
1: a ^ 2> b ^ 2
2: ab <0

by colakumarfanta

Thu May 20, 2010 10:21 pm
Forum: Data Sufficiency
Topic: b < 0
Replies: 1
Views: 1004

Largest area

Problem Solving
Largest area

A circle is inside a rectangle . Dimensions of rectangle are 8 and 10 . So the largest area of square is ?

by colakumarfanta

Thu May 20, 2010 10:01 pm
Forum: Problem Solving
Topic: Largest area
Replies: 2
Views: 954

a-b <0

Data Sufficiency
a-b <0

Is a-b <0?
1). A ^ 2 + b ^ 2 <0
2). A ^ 2-b ^ 2 <0

by colakumarfanta

Thu May 20, 2010 9:50 pm
Forum: Data Sufficiency
Topic: a-b <0
Replies: 1
Views: 887

Value of x

Data Sufficiency
Value of x

Given y = x ^ (n +1) What is the value of x
(1) y = 1 (2) n is odd.

by colakumarfanta

Thu May 20, 2010 9:42 pm
Forum: Data Sufficiency
Topic: Value of x
Replies: 1
Views: 841

a + b <= 1

Data Sufficiency
a + b <= 1

Is a + b <= 1?
1) a ^ 2 + b ^ 2 <= 1
2) a ^ 2-b ^ 2 <= 1

by colakumarfanta

Thu May 20, 2010 9:31 pm
Forum: Data Sufficiency
Topic: a + b <= 1
Replies: 3
Views: 1233

p-q

Data Sufficiency
p-q

Is p-q is divisible by 5
(1) p is divisible by 5
(2) pq is divisible by 5

by colakumarfanta

Thu May 20, 2010 9:06 pm
Forum: Data Sufficiency
Topic: p-q
Replies: 2
Views: 908

x > y

Data Sufficiency
x > y

is x> y?
1) | x |> y,
2) x> | y |

by colakumarfanta

Thu May 20, 2010 9:00 pm
Forum: Data Sufficiency
Topic: x > y
Replies: 3
Views: 1008

x + y

Data Sufficiency
x + y

Is x + y <0
1) x ^ 2-y ^ 2> 0
2) x-y <0

by colakumarfanta

Thu May 20, 2010 8:58 pm
Forum: Data Sufficiency
Topic: x + y
Replies: 1
Views: 954

How much Z?

Problem Solving
How much Z?

x is 40% less than y, z is 20% more than x, z is how much less than y?

Is it [spoiler]28%[/spoiler]

by colakumarfanta

Thu May 20, 2010 9:46 am
Forum: Problem Solving
Topic: How much Z?
Replies: 5
Views: 1203

Prime factor

Problem Solving
Prime factor

2 ^ 51 and (2 ^ n) * (3 ^ 3) have the same number of factor, value of n ?

Is this the right way to solve this question

[spoiler]Factor for 2 ^ 51 = 51 +1

So ,
51 +1 = (N +1) * (3 +1)[/spoiler]

by colakumarfanta

Thu May 20, 2010 6:49 am
Forum: Problem Solving
Topic: Prime factor
Replies: 2
Views: 949

Which is correct?

Problem Solving

I guess X ^ 2> X ^ 3 is also not true when X = 0 . Please let me know if I am missing anything ?

by colakumarfanta

Thu May 20, 2010 6:07 am
Forum: Problem Solving
Topic: Which is correct?
Replies: 5
Views: 1096

Which is correct?

Problem Solving
Which is correct?

X range is -1 <X <1, Q Which of the following must be true?
Answers are:
X ^ 2> X ^ 3,
(X +1 / 2) (X-1 / 2) <0

by colakumarfanta

Thu May 20, 2010 5:08 am
Forum: Problem Solving
Topic: Which is correct?
Replies: 5
Views: 1096

Value of x ?

Data Sufficiency
Value of x ?

Value of X?
1) W + Z = 240
2) W=Y=Z

by colakumarfanta

Thu May 20, 2010 2:16 am
Forum: Data Sufficiency
Topic: Value of x ?
Replies: 5
Views: 1275