Search found 112 matches
ab ba gmat number prop
AB
+BA
-----
AAC
In the correctly worked addition problem shown, where
the sum of the two-digit positive integers AB and BA is
the three-digit integer AAC, and A, B, and C are different digits, what is the units digit of the
integer AAC?
A. 9
B. 6
C. 3
D. 2
E. 0
- by rommysingh
Sun Oct 25, 2015 4:41 pm- Forum: Problem Solving
- Topic: ab ba gmat number prop
- Replies: 5
- Views: 4509
function
if the function F is defined by F(x)=x^2+1/x^2 for all nonzero numbers X, then F(-1/X)=
A. –1/f(x)
B. 1/f(x)
C. 1-f(x)
D. –f(x)
E. f(x)
- by rommysingh
Sun Oct 25, 2015 3:56 pm- Forum: Problem Solving
- Topic: function
- Replies: 4
- Views: 1451
permutation gmat
Of the three-digit positive integers that have no digits equal
to zero, how many have two digits that are equal to each
other and the remaining digit different from the other two?
A. 24
B. 36
C. 72
D. 144
E. 216
- by rommysingh
Sun Oct 25, 2015 3:04 pm- Forum: Problem Solving
- Topic: permutation gmat
- Replies: 10
- Views: 3996
Absolute Gmat
If xyz ≠0, is x (y + z) >= 0?
(1) ¦y + z¦ = ¦y¦ + ¦z¦
(2) ¦x + y¦ = ¦x¦ + ¦y¦
Also How to solve equations with absolute numbers on two sides.
- by rommysingh
Mon Oct 19, 2015 3:36 pm- Forum: Data Sufficiency
- Topic: Absolute Gmat
- Replies: 1
- Views: 999
gmat exam coordinate
In the xy-plane, the point (-2, -3) is the center of a circle. The point (-2, 1) lies inside the circle and the point (4, -3) lies outside the circle. If the radius r of the circle is an integer, then r =
6
5
4
3
2
- by rommysingh
Sat Oct 17, 2015 1:47 pm- Forum: Problem Solving
- Topic: gmat exam coordinate
- Replies: 2
- Views: 1381
multifigure geometry gmatprep
In the figure above, equilateral triangle ABC is inscribed in the circle. If the length of arc ABC is 24, what is the approximate diameter of the circle?
A. 5
B. 8
C. 11
D. 15
E. 19
- by rommysingh
Sat Oct 10, 2015 12:46 pm- Forum: Problem Solving
- Topic: multifigure geometry gmatprep
- Replies: 1
- Views: 1145
Gmat prep remainder
If n is a positive integer and r is the remainder when 4+7n is divided by 3 what is the value of r ?
(1) n+1 is divisible by 3
(2) n >20
- by rommysingh
Wed Oct 07, 2015 12:34 pm- Forum: Data Sufficiency
- Topic: Gmat prep remainder
- Replies: 7
- Views: 2192
- by rommysingh
Tue Oct 06, 2015 6:04 am- Forum: Data Sufficiency
- Topic: GMAT ExAM INEQUALITY
- Replies: 2
- Views: 1244
- by rommysingh
Fri Sep 18, 2015 3:33 pm- Forum: Data Sufficiency
- Topic: GMAT Prep inequality
- Replies: 2
- Views: 1374
- by rommysingh
Fri Sep 18, 2015 1:18 pm- Forum: Problem Solving
- Topic: MGMAT absolute numbers
- Replies: 4
- Views: 1761
Hi Rich, thanks for reverting. It says fact 1 - 9th term is 81 so term shd be some constant on term 9 is 81 where as in your example you state the second term to be 81 itself 81. I do get the logic of number increase or decrease but its difficult when you show in fact 1 and two. can you please show ...
- by rommysingh
Fri Sep 18, 2015 10:14 am- Forum: Data Sufficiency
- Topic: MGMAT Sequence
- Replies: 4
- Views: 1640
MGMAT SC
Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago. 1)are either too time-consuming or involve too many variables ...
- by rommysingh
Fri Sep 18, 2015 8:40 am- Forum: Sentence Correction
- Topic: MGMAT SC
- Replies: 1
- Views: 1610
Combination MGA+MAT
Each year, a college admissions committee grants a certain number of $10,000 scholarships, $5,000 scholarships, and $1,000 scholarships. The number of scholarships granted at each level does not vary from year to year, and no student can receive more than one scholarship. This year, how many differe...
- by rommysingh
Thu Sep 17, 2015 3:37 pm- Forum: Problem Solving
- Topic: Combination MGA+MAT
- Replies: 1
- Views: 962
MGMAT absolute numbers
If |x| + |y| = -x – y and xy does not equal 0, which of the following must be true?
x + y > 0
x + y < 0
x – y > 0
x – y < 0
x2 – y2 > 0
- by rommysingh
Thu Sep 17, 2015 3:25 pm- Forum: Problem Solving
- Topic: MGMAT absolute numbers
- Replies: 4
- Views: 1761
MGMAT circle area
A 10-by-6 inch piece of paper is used to form the lateral surface of a cylinder. If the entire piece of paper is used to make the lateral surface, which of the following must be true of the two possible cylinders that can be formed? The volume of the cylinder with height 10 is 60 / cubic inches grea...
- by rommysingh
Thu Sep 17, 2015 3:15 pm- Forum: Problem Solving
- Topic: MGMAT circle area
- Replies: 5
- Views: 1736