Clik here to view.
How to deal with functions+lines with an outstanding exampl
Basics:if a straight line passes through two different points such as (a,b) and (c,d) then,the slope of the line = b-d/a-c .if a function is given and a co-ordinate also with one unknown term its...
View ArticleClik here to view.
If a,b,c are different positive integers,and a^2+b^2 = c^2
If a,b,c are different positive integers,and a^2+b^2 = c^2, then what is the value of (c-b)^2?I.a is a prime.II.b^2 is a multiple of 4.Source: My own
View ArticleClik here to view.
Probabibilty from MGMAT advanced question
Set S is the prime integers between 0 and 20. If three numbers are chosen randomly from set S, what is the probabilty that the sum of these three numbers is odd?(1) 15/56(2) 3/8(3) 15/28(4) 5/8(5)...
View ArticleClik here to view.
For non-zero integers a, b, c and d, is ab/cd positive?
This topic have been merged with: http://gmatclub.com/forum/topic-40270.html
View ArticleClik here to view.
If the length of an edge of cube X is twice the length of an
If the length of an edge of cube X is twice the length of an edge of cube Y, what is the ratio of the volume of cube Y to the volume of cube X?(A) 1/2(B) 1/4(C) 1/6(D) 1/8(E) 1/27can someone please...
View ArticleClik here to view.
Clik here to view.
A couple decides to have 4 children. If they succeed in havi
A couple decides to have 4 children. If they succeed in having 4 children and each child is equally likely to be a boy or a girl, What is the probability that they will have exactly 2 girls and 2...
View ArticleClik here to view.
If p and n are positive integers and p>n, what is the remain
This topic have been merged with: http://gmatclub.com/forum/topic-93971.html
View ArticleClik here to view.
In the circle above, if OA and BC are parallel, and radius
In the circle above, if OA and BC are parallel, and radius OA of the circle is 3, what is the length of minor arc AD?A) \frac{3}{2} PiB)2 PiC)\frac{5}{2} PiD)3 PiE)6 Pi
View ArticleClik here to view.
What does k equal if (3k)^x=1
What does k equal if (3k)^x=1?(1) k>0(2) x is a positive integer
View ArticleClik here to view.
The interest paid by Red State Reserve Bank is three times
The interest paid by Red State Reserve Bank is three times the interest paid by First Ranch Savings Bank for every dollar deposited into these banks. How much did John Joe deposit at Red State Reserve...
View ArticleClik here to view.
Each of the 110 residents in Dashville is either a rancher
Each of the 110 residents in Dashville is either a rancher or an tractor-driver, but not both. How many residents of Dashville are ranchers?(1) There are more than 81 ranchers who reside in...
View ArticleClik here to view.
20 students took the test. The arithmetic mean of the scores
20 students took the test. The arithmetic mean of the scores was 4.75 and the range was 2. If the only possible scores were {2,3,4,5}, what is the greatest possible number of excellent scores...
View ArticleClik here to view.
DS : Is 1 / (a–b) < (b–a)?
This topic have been merged with: http://gmatclub.com/forum/topic-26531.html
View ArticleClik here to view.
if k is a positive constant , what is the max value of:
If K is a positive constant and y=|x-k|-|x+k|, what is the maximum value of y:1.x<02.k=3I'm looking for a short quick way please.Thanks.
View ArticleClik here to view.
For which of the following functions f is f(x) = f (1-x)
For which of the following fns f is f(x)=f(1-x) for all xa. f(x)=1-xb. f(x)=1-x^2c.f(x)=x^2-(1-x)^2d.f(x)=x^2(1-x)^2e. f(x)=x/(1-x)
View ArticleClik here to view.
A question in VICs
Lindsay can paint 1/x of a certain room in one hour. If Lindsay and Joseph, working together at their respective rates, can paint the room in one hour, what fraction of the room can Joseph paint in 20...
View ArticleClik here to view.
ABCD is a quadrilateral. BCEF is a rhombus and shares a comm
ABCD is a quadrilateral. BCEF is a rhombus and shares a common side with the quadrilateral ABCD. The area of which one is greater ABCD or BCEF ?(1)ABCD is a square.(2)BCEF is not a square.Solution:From...
View ArticleClik here to view.
If two of the four expressions x + y, x + 5y, x - y, and 5x
If two of the four expressions x + y, x + 5y, x - y, and 5x - y are chosen at random, what is the probability that their product will be of the form of x^2 - (by)^2, where b is an integer?A) 1/2B)...
View ArticleClik here to view.
By how much does the larger root of the equation 2x^2+5x = 1
By how much does the larger root of the equation 2x^2+5x = 12 exceed the smaller root? (A) 5/2(B) 10/3(C) 7/2(D) 14/3(E) 11/2Source: GMATPrep Question Pack 1Difficulty: Hard------------The problem I...
View Article