Search found 110 matches


antebellum

The fields of antebellum (pre-Civil War) political history and women's his- tory use separate sources and focus Line on separate issues. Political histori- (5) ans, examining sources such as voting records, newspapers, and politicians' writings, focus on the emergence in the 1840's of a new "Am...

by greenwich

Fri Jul 18, 2014 3:15 pm
Forum: Reading Comprehension
Topic: antebellum
Replies: 0
Views: 1430

1. A certain scholarship committee awarded scholarships in the amounts of $1250, $2500 and $4000. The Committee awarded twice as many $2500 scholarships as $4000 and it awarded three times as many $1250 scholarships as $2500 scholarships. If the total of $37500 was awarded in $1250 scholarships, ho...

by greenwich

Tue Jun 10, 2014 6:51 pm
Forum: Problem Solving
Topic: Scholarship
Replies: 8
Views: 3494

Book Fair

Bob visited a book fair and bought a certain no. of books. he estimated the total cost on these books by rounding the cost on each of these books to the nearest dollars. was the actual cost minus the estimated cost less than 15 dollars? 1) Bob bought a total of 25 books. 2) the estimated price of 80...

by greenwich

Mon Jun 09, 2014 5:05 pm
Forum: Data Sufficiency
Topic: Book Fair
Replies: 3
Views: 2075

Scholarship

1. A certain scholarship committee awarded scholarships in the amounts of $1250, $2500 and $4000. The Committee awarded twice as many $2500 scholarships as $4000 and it awarded three times as many $1250 scholarships as $2500 scholarships. If the total of $37500 was awarded in $1250 scholarships, how...

by greenwich

Mon Jun 09, 2014 5:02 pm
Forum: Problem Solving
Topic: Scholarship
Replies: 8
Views: 3494

If 4<[(7-x)/3], which of the following must be true? I. 5<x II. |x+3|>2 III. -(x+5) is positive A) II only B) III only C) I and II only D) II and III only E) I, II and III First, let's deal with the given inequality. 4 < (7-x)/3 Multiply both sides by 3 to get: 12 < 7 - x Add x to both sides: x + 1...

by greenwich

Fri Jan 17, 2014 6:09 pm
Forum: Problem Solving
Topic: Must be True
Replies: 17
Views: 6692

Brent, for the 3 steps to solve the Absolute Value: 1. Apply the rule that says: If |x| = k, then x = k and/or x = -k 2. Solve the resulting equations 3. Plug in the solutions to check for extraneous roots Does #3 Plug in the solutions to check for extraneous roots also applies to Absolute Value wi...

by greenwich

Fri Jan 17, 2014 5:39 pm
Forum: Problem Solving
Topic: Must be True
Replies: 17
Views: 6692

Must be True

f 4<[(7-x)/3], which of the following must be true? I. 5<x II. |x+3|>2 III. -(x+5) is positive A) II only B) III only C) I and II only D) II and III only E) I, II and III For II, x+3>2, x>-1 or -x-3>2, x<-5, can we say II is true even if only one of the two solutions satisfies the MUST be true quest...

by greenwich

Fri Jan 17, 2014 5:17 pm
Forum: Problem Solving
Topic: Must be True
Replies: 17
Views: 6692

Complex Absolute Value Concept

|x+3| - |4-x| = |8+x|. How many solutions does the equation have?

I'm not quite sure if this type of multiple Absolute Values question will be asked in GMAT. Can someone walk me through the steps for this question?

by greenwich

Fri Jan 17, 2014 2:57 pm
Forum: Data Sufficiency
Topic: Complex Absolute Value Concept
Replies: 3
Views: 2271

Why in Statement 1: |x+3|=4x-3
here LHS is Absolute value, which is non-negative?

I think I miss something by solving the problem as follows:

x+3=4x-3
3x=6
x=2

x+3=-4x+3
5x=0
x=0

What did I do wrong in the above problem?

by greenwich

Fri Jan 17, 2014 10:10 am
Forum: Data Sufficiency
Topic: Is x>0?
Replies: 7
Views: 5861

Is x>0?

Is x>0?

(1) |x+3|=4x-3
(2) |x+1|=2x-1

by greenwich

Thu Jan 16, 2014 5:23 pm
Forum: Data Sufficiency
Topic: Is x>0?
Replies: 7
Views: 5861

xyz

Is |x-z|=|z-y|?

(1) x=y
(2)|x|-z=|y|-z

by greenwich

Thu Jan 16, 2014 4:52 pm
Forum: Data Sufficiency
Topic: xyz
Replies: 2
Views: 1078

Below 21 = 3A Above 21 = A Total Population is 4A Ratio of Population of below 21 to entire population is nothing but - 3A/4A => 3 : 4 The wording in this question is similar to the second question that I posted above. But on the second question (1) G=3B. Why not B=3G? What am I missing here?

by greenwich

Sun Nov 10, 2013 3:15 pm
Forum: Problem Solving
Topic: Population
Replies: 14
Views: 2789

In the United Kingdom, we try not to write ratios as fractions - as it can lead to misconceptions. Instead we use a colon. I would answer the population question using a grid like this: <=21 : > 21 : Total 3 : 1 : 4 So, the answer is simply 3:4 (which means 3 to 4). Similarly, with the boy/girl que...

by greenwich

Sat Nov 09, 2013 1:47 pm
Forum: Problem Solving
Topic: Population
Replies: 14
Views: 2789

I am missing something here. Why it's not B=3G in the second question as the wording in the second one is similar to the first question?

by greenwich

Fri Nov 08, 2013 5:51 am
Forum: Problem Solving
Topic: Population
Replies: 14
Views: 2789

In the following question: In Mr. Smith's class, what is the ratio of the number of boys to the number of girls? (1) There are 3 times as many girls as boys in Mr. Smith's class. (2) The number of boys is 1/4 of the total number of boys and girls in Mr. Smith's class. It seems that the wording in (1...

by greenwich

Thu Nov 07, 2013 5:09 pm
Forum: Problem Solving
Topic: Population
Replies: 14
Views: 2789