Search found 101 matches
probability - gmat prep
if two of the four expression x+y, x+5y , x-y and x-5y are chosen at random, what is the probability that their product will be of the form of x^2 - (by)^2 , where b is integer?
1. 1/2
2. 1/3
3. 1/4
4. 1/5
5. 1/6
- by g.shankaran
Tue Jun 14, 2011 7:25 am- Forum: Problem Solving
- Topic: probability - gmat prep
- Replies: 1
- Views: 1045
gmat prep - similar triangles.
Triangle ABC and Triangle CDF has angle a = angle c , angle d = angle b and angle c = angle f. the area of triangle cdf is twice the area of triangle ABC. if the base of triangle ABC is s,and the base of triangle CDF is S, then in terms of s, S = 1. sqrt(2)/2 s 2. sqrt(3)/2 s 3. sqrt(2)s 4. sqrt(3)s...
- by g.shankaran
Tue Jun 14, 2011 7:22 am- Forum: Problem Solving
- Topic: gmat prep - similar triangles.
- Replies: 9
- Views: 4627
sum of even numbers
the sum of the first 50 +ve even integers is 2550. which is the sum of the even integers from 102 to 200 inclusive?
1. 5100
2. 7550
3. 10100
4. 15500
5. 20100
- by g.shankaran
Sun Jun 12, 2011 2:30 am- Forum: Problem Solving
- Topic: sum of even numbers
- Replies: 5
- Views: 6225
what is the effective way of solving this?
if x is equal to the sum of the even integers from 40 to 60, inclusive and y is the number of even integers from 40 to 60, inclusive what is the value of x + y?
1. 550
2. 551
3. 560
4. 561
5. 571
- by g.shankaran
Sun Jun 12, 2011 2:28 am- Forum: Problem Solving
- Topic: what is the effective way of solving this?
- Replies: 5
- Views: 1356
n odd/
is the integer n odd?
1. n is divisible by 3.
2. 2n divisible by twice as many +ve integers as n.
- by g.shankaran
Sun Jun 12, 2011 2:18 am- Forum: Data Sufficiency
- Topic: n odd/
- Replies: 6
- Views: 1703
gmatprep
for any +ve integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75 = 3 X 5 X 5. how many two-digit integers have length 6?
1. none
2. 1
3. 2
4. 3
5. 4
- by g.shankaran
Sun Jun 12, 2011 2:16 am- Forum: Problem Solving
- Topic: gmatprep
- Replies: 4
- Views: 1150
Percentage
of the 800 employees company x, 70 percent have been with the company for atleast ten yrs. if y of those long-term members were to retire and no other employee changes were to occur, what value of y would reduce the percent of "long-term" employees in the company to 60 percent. 1. 200 2. 1...
- by g.shankaran
Sun Jun 12, 2011 2:13 am- Forum: Problem Solving
- Topic: Percentage
- Replies: 3
- Views: 1369
- by g.shankaran
Sun Jun 12, 2011 2:10 am- Forum: Data Sufficiency
- Topic: I/K > 0
- Replies: 2
- Views: 879
Just as a writer trying to understand shtetl life might read shalom Aleichem or Bashevis Singer, in the same way writers trying to understand Black life in the American South might well listen to records by the missisipi delta blues man Charlie Patton. (A) in the same way writers trying to understa...
- by g.shankaran
Sat Jun 11, 2011 12:32 am- Forum: Sentence Correction
- Topic: please help me out
- Replies: 4
- Views: 1375
The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protection, have consistently received labor’s unqualifying support. A. have consistently received labor’s unqualifying support B. are consistently receiving the unqualifying support o...
- by g.shankaran
Sat Jun 11, 2011 12:28 am- Forum: Sentence Correction
- Topic: The three women, liberal activists who strongly
- Replies: 8
- Views: 6214
22. The telecom minister had been indicted by the Supreme court in the 2G spectrum scam, which resulted in a loss of about $1.7 trillion to the exchequer. A. had been indicted by the Supreme court in the 2G spectrum scam, which resulted -- The verb sequence is wrong. loss happened at first B. has b...
- by g.shankaran
Sat Jun 11, 2011 12:24 am- Forum: Sentence Correction
- Topic: grail sc
- Replies: 7
- Views: 1824
- by g.shankaran
Sat Jun 11, 2011 12:12 am- Forum: Sentence Correction
- Topic: [700+] Kaplan Question
- Replies: 10
- Views: 2187
- by g.shankaran
Sat Jun 11, 2011 12:10 am- Forum: Sentence Correction
- Topic: By the same techniques used for
- Replies: 8
- Views: 3085
mean
if m is a positive odd integer, what is the average ( arithmetic mean) of a certain set of m integers?
1. the integer in the set are consecutive multiples of 3.
2. the median of the set of integers is 33.
- by g.shankaran
Thu Jun 09, 2011 8:06 am- Forum: Data Sufficiency
- Topic: mean
- Replies: 3
- Views: 1563
circumf of circle
Square S is inscribed in circle T. If the perimeter of S is 24, what is the circumference of T
1. 6 pi
2. 12 pi
3. 3 sqr (2pi)
4. 6 sqr (2pi)
5. 12 sqr (2 pi)
- by g.shankaran
Thu Jun 09, 2011 8:03 am- Forum: Problem Solving
- Topic: circumf of circle
- Replies: 5
- Views: 1575