Search found 273 matches

by fangtray

Tue May 15, 2012 9:13 pm
Forum: Data Sufficiency
Topic: Another remainder problem
Replies: 4
Views: 1370

(1.00001)(0.99999) – (1.00002)(0.99998) = a. 0 b. 10^-10 c. 3(10^-10) d. 10^-5 e. 3(10^-5) 1.00001 = 1+10ˉ� .99999 = 1-10ˉ� 1.00002 = 1+2(10ˉ�) .99998 = 1-2(10ˉ�) Thus: (1.00001)(0.99999) – (1.00002)(0.99998) = (1+10ˉ�)(1-10ˉ�) - (1 + 2*10ˉ�)(1 - 2*10ˉ�) [Note the differ...

by fangtray

Tue May 15, 2012 8:54 pm
Forum: Problem Solving
Topic: GMAT Question Pack 1 hard
Replies: 8
Views: 3122

gmat question pack 1 hard remainder

If x and y are integers, what is the remainder when x^2 + y^2 is divided by 5?
1. When x-y is divided by 5, the remainder is 1
2. When x+y is divided by 5, the remainder is 2

by fangtray

Tue May 15, 2012 7:29 am
Forum: Data Sufficiency
Topic: gmat question pack 1 hard remainder
Replies: 3
Views: 1082

Another remainder problem

If a certain positive integer is divided by 9, the remainder is 3. What is the remainder when the integer is divided by 5?
1. If the integer is divided by 45, the remainder is 30
2. The integer is divisible by 2

by fangtray

Tue May 15, 2012 7:29 am
Forum: Data Sufficiency
Topic: Another remainder problem
Replies: 4
Views: 1370

gmat question pack 1 plz help

If u(u+v) does not equal 0, u > 0, is 1/(u+v) < (1/u) + v?
1. u + v > 0
2. v > 0

by fangtray

Tue May 15, 2012 7:28 am
Forum: Data Sufficiency
Topic: gmat question pack 1 plz help
Replies: 1
Views: 1027

GMAT Question Pack 1 hard

(1.00001)(0.99999) – (1.00002)(0.99998) =

a. 0
b. 10^-10
c. 3(10^-10)
d. 10^-5
e. 3(10^-5)

by fangtray

Tue May 15, 2012 7:27 am
Forum: Problem Solving
Topic: GMAT Question Pack 1 hard
Replies: 8
Views: 3122

Probability and Number Properties

If an integer n is to be chosen at random from integers 1 to 96, inclusive, what is the probability that n(n+1)(n+2) will be divisible by 8?
1. 1/4
2. 3/8
3. 1/2
4. 5/8
5. 3/4

I got the right answer. Took 6 minutes. What's the under 2 minute way to do this?

by fangtray

Tue May 15, 2012 7:25 am
Forum: Problem Solving
Topic: Probability and Number Properties
Replies: 6
Views: 1139

LalaB wrote:
ranjeet75 wrote:I think E
E is not ok, since u have already the word "today", but at the same time u try to use the word "now". they are similar in the meaning.
u dont say -today I am here now.
good find Lala. OA is C. I wonder if there is anything else wrong with E though.

by fangtray

Mon May 14, 2012 6:12 pm
Forum: Sentence Correction
Topic: GMAP Prep 2.1 manufacturing
Replies: 7
Views: 973

The conclusion was about the special program information: "the number of Verdlanders receiving the special program information probably did not increase significantly." Even if non-RDS radios could pick up the broadcasts, they would not receive that special information. Thus, it has no effect on th...

by fangtray

Mon May 14, 2012 6:11 pm
Forum: Critical Reasoning
Topic: picking between last 2 on GMAT 2.0 EXAM
Replies: 9
Views: 1535

Ok, let me tell you briefly about Arithmetic Progression (AP) Lets take a few sequences of numbers 6,7,8,9,10,11 -3,-1,1,3,5 8,5,2,-1,-4 Do you notice a pattern in the sequences above? The difference between any two consecutive terms in each of those sequences is Constant throughout the sequence. T...

by fangtray

Mon May 14, 2012 2:56 pm
Forum: Problem Solving
Topic: finding the sum of consecutive integers
Replies: 6
Views: 11341

The conclusion was about the special program information: "the number of Verdlanders receiving the special program information probably did not increase significantly." Even if non-RDS radios could pick up the broadcasts, they would not receive that special information. Thus, it has no effect on th...

by fangtray

Mon May 14, 2012 1:13 am
Forum: Critical Reasoning
Topic: picking between last 2 on GMAT 2.0 EXAM
Replies: 9
Views: 1535

GMAT Prep 2.1 Honeybees

|As the honeybee’s stinger is heavily barbed, staying where it is inserted, this results in the act of stinging causing| the bee to sustain a fatal injury. a. b. As the heavily barbed stinger of the honeybee stays where it is inserted, with the result that the act of stinging causes c. The honeybe...

by fangtray

Mon May 14, 2012 12:24 am
Forum: Sentence Correction
Topic: GMAT Prep 2.1 Honeybees
Replies: 5
Views: 2975

GMAP Prep 2.1 manufacturing

Today’s technology allows manufacturers to make |small cars more fuel-efficient now than at any time in their| production history. a. b. small cars that are more fuel-efficient than they were at any time in their c. small cars that are more fuel-efficient than those at any other time in d. more fu...

by fangtray

Mon May 14, 2012 12:22 am
Forum: Sentence Correction
Topic: GMAP Prep 2.1 manufacturing
Replies: 7
Views: 973

B doesn't work. Even if they can now receive broadcasting, they still can't received the special program information because they don't have RDS radios. so B is wrong because they didn't specify what kind of programming the non-RDS radios could pick up from RDS radio stations even though RDS radio ...

by fangtray

Sun May 13, 2012 3:26 pm
Forum: Critical Reasoning
Topic: picking between last 2 on GMAT 2.0 EXAM
Replies: 9
Views: 1535

If n is a multiple of 5 and n = p^2q, where p and q are prime numbers, which of the following must be a multiple of 25? a. p^2 b. q^2 c. pq d. P^2q^2 e. p^3q When a question asks for WHAT MUST BE X , try to prove that four of the answer choices DO NOT HAVE TO BE X. The correct answer will be the re...

by fangtray

Sun May 13, 2012 2:46 pm
Forum: Problem Solving
Topic: gmat 2.0 exam prime
Replies: 6
Views: 1063