Search found 24 matches
y=3x+2 - point (r,s)
In the xy plane, does the line with equation y=3x+2 contain the point (r,s)?
1) (3r+2-s)(4r+9-s)=0
2) (4r-6-s)(3r+2-s)=0.
Pls explain the step and the logic to solve similar type of problems.
- by vishal_2804
Wed Apr 24, 2013 3:25 am- Forum: GMAT Math
- Topic: y=3x+2 - point (r,s)
- Replies: 6
- Views: 7032
can u plz explain the logic for As x, y, and z are prime, number of factors of xyz is (1 + 1)(1 + 1)(1 + 1) = 8.
Thanks
- by vishal_2804
Mon Apr 22, 2013 9:33 pm- Forum: GMAT Math
- Topic: prime numbers
- Replies: 4
- Views: 2507
prime numbers
If x, y, and z are consecutive prime numbers and x < y < z, which of the following must be true?
I. (x+y)/2 is an integer.
II. xyz has exactly 8 factors.
III. y – x = 1
a) I only
b) II only
c) III only
d) I and II only
e) II, and III
- by vishal_2804
Sun Apr 21, 2013 11:03 am- Forum: GMAT Math
- Topic: prime numbers
- Replies: 4
- Views: 2507
- by vishal_2804
Sun Apr 21, 2013 4:14 am- Forum: GMAT Math
- Topic: Factors
- Replies: 7
- Views: 3173
Factors
If p and q are positive integers, is every factor of p a factor of q?
(1) p is a factor of q.
(2) The product of the prime factors of p is a factor of q.
- by vishal_2804
Sat Apr 20, 2013 7:06 am- Forum: GMAT Math
- Topic: Factors
- Replies: 7
- Views: 3173
integer?
If n and y are positive integers and 450y=n^3, which of the following must be an integer.
1) y/(3*2^2*5)
2) Y/(3^2*2*5)
3) Y/(3*2*5^2)
a) None
b) 1 only
c) 2 only
d) 3 only
e) 1, 2 and 3
- by vishal_2804
Fri Apr 19, 2013 7:23 am- Forum: GMAT Math
- Topic: integer?
- Replies: 2
- Views: 1753
DS- French/Japanese
at least 100 students at a certain high school study Japanese. if 4 percent of the students at the school who study french also study Japanese, do more students at the school study french than Japanese. 1) 16 students at the school study both french and Japanese 2) 10 percent of the students at the ...
- by vishal_2804
Fri Apr 19, 2013 7:19 am- Forum: GMAT Math
- Topic: DS- French/Japanese
- Replies: 9
- Views: 8096
median / range problem
A set of 15 different integers has a median of 25 and range of 25. what is the greatest possible integer that could be in this set?
a) 32
b) 37
c) 40
d) 43
e) 50
- by vishal_2804
Fri Apr 19, 2013 7:16 am- Forum: GMAT Math
- Topic: median / range problem
- Replies: 9
- Views: 10247
committee problem
A committee of three people is to be chosen from four married couples. What is the number of different committees that can be chosen if two people who are married to each other cannot both serve on the committee?
a) 16
b) 24
c) 26
d) 30
e) 32.
Pls explain how to solve such problems in general
- by vishal_2804
Fri Apr 19, 2013 7:12 am- Forum: GMAT Math
- Topic: committee problem
- Replies: 3
- Views: 1674
Height of tree
When a certain tree was first planted, it was 4 feet tall, and height of he tree increased by a constant amount each year for the next 6 yrs. At the end of 6th year, the tree was (1/5) taller than it was at the end of the 4th yr. By how many feet did the height of the tree increase each year? a) (3/...
- by vishal_2804
Fri Apr 19, 2013 7:07 am- Forum: GMAT Math
- Topic: Height of tree
- Replies: 1
- Views: 1628
- by vishal_2804
Tue Apr 16, 2013 2:24 am- Forum: GMAT Math
- Topic: Problem from GMATprep
- Replies: 4
- Views: 1673
Problem from GMATprep
Guys need help, the attachment contains problem from GMAT prep software with correct answers. I would like the explanation for each.
- by vishal_2804
Mon Apr 15, 2013 11:44 pm- Forum: GMAT Math
- Topic: Problem from GMATprep
- Replies: 4
- Views: 1673
1000_SC Problem
Although he is as gifted as, if not more gifted than, many of his colleagues, he is extremely modest and his poetry is unpublished. (A) Although he is as gifted as, if not more gifted than, many of his colleagues, he is extremely modest and his poetry is unpublished. (B) Although he is as gifted, i...
- by vishal_2804
Thu Jul 07, 2011 8:30 am- Forum: Sentence Correction
- Topic: 1000_SC Problem
- Replies: 4
- Views: 1440
1000_SC - 3 problems
1) According to his own account, Frederic-Auguste Bartholdi, the sculptor of the Statue of Liberty, modeled the face of the statue like his mother’s and the body like his wife’s. (A) modeled the face of the statue like his mother’s and the body like his wife’s (B) modeled the face of the sta...
- by vishal_2804
Tue Jul 05, 2011 9:38 am- Forum: Sentence Correction
- Topic: 1000_SC - 3 problems
- Replies: 4
- Views: 1211
1000_SC 2 Problem
A huge flying reptile that died out with the dinosaurs some 65 million years ago, the Quetzalcoatlus had a wingspan of 36 feet, believed to be the largest flying creature the world has ever seen. (A) believed to be (B) and that is believed to be (C) and it is believed to have been (D) which was, it ...
- by vishal_2804
Sun Jul 03, 2011 4:01 am- Forum: Sentence Correction
- Topic: 1000_SC 2 Problem
- Replies: 5
- Views: 1158