Search found 157 matches
Three couples need to arranged in a row for a group photo. If the couples cannot be separated, how many different arrangements are possible? A. 6 B. 12 C. 24 D. 48 E. 96 Let the 6 people be represented as (A, a), (B, b), and (C, c) Take the task of arranging the 3 couples and break it into stages ....
- by hazelnut01
Sat May 20, 2017 7:10 am- Forum: Problem Solving
- Topic: Three couples need to arranged in a row for a group photo. I
- Replies: 9
- Views: 6274
Three couples need to arranged in a row for a group photo. I
Three couples need to arranged in a row for a group photo. If the couples cannot be separated, how many different arrangements are possible?
A. 6
B. 12
C. 24
D. 48
E. 96
- by hazelnut01
Sat May 20, 2017 6:54 am- Forum: Problem Solving
- Topic: Three couples need to arranged in a row for a group photo. I
- Replies: 9
- Views: 6274
If x > y, is |x| > |y|? (1) x > 0 (2)
If x > y, is |x| > |y|?
(1) x > 0
(2) y > 0
Source : Math Revolution
OA=B
- by hazelnut01
Sat May 20, 2017 4:45 am- Forum: Data Sufficiency
- Topic: If x > y, is |x| > |y|? (1) x > 0 (2)
- Replies: 2
- Views: 1424
In the xy-plane, is the slope of line k equal to 0? (1) the
In the xy-plane, is the slope of line k equal to 0?
(1) the x-intercept of k is 0
(2) the y-intercept of k is 0
Source : GMATPrep
OA=A
- by hazelnut01
Sat May 20, 2017 1:54 am- Forum: Data Sufficiency
- Topic: In the xy-plane, is the slope of line k equal to 0? (1) the
- Replies: 4
- Views: 2220
If p is a positive integer, is p a prime number? (1) p and p
If p is a positive integer, is p a prime number?
(1) p and p+1 have the same number of factors.
(2) p−1 is a factor of p.
OA=B
- by hazelnut01
Fri May 19, 2017 6:16 am- Forum: Data Sufficiency
- Topic: If p is a positive integer, is p a prime number? (1) p and p
- Replies: 3
- Views: 1938
Is x^4 + y^4 > z^4 ? 1. x^2 + y^2 > z^2 2. x + y >
Is x^4 + y^4 > z^4 ?
1. x^2 + y^2 > z^2
2. x + y > z
Source : GMATPrep
OA=E
- by hazelnut01
Fri May 19, 2017 12:40 am- Forum: Data Sufficiency
- Topic: Is x^4 + y^4 > z^4 ? 1. x^2 + y^2 > z^2 2. x + y >
- Replies: 2
- Views: 1329
E is a collection of four odd integers and the greatest diff
E is a collection of four odd integers and the greatest difference between any two integers in E is 4. The standard deviation of E must be one of how many numbers?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7
- by hazelnut01
Fri May 19, 2017 12:04 am- Forum: Problem Solving
- Topic: E is a collection of four odd integers and the greatest diff
- Replies: 1
- Views: 1243
If x > 0, the value of 6√x - x – 8 is greatest when x
If x > 0, the value of 6√x - x – 8 is greatest when x=
A. 0.1
B. √63
C. √72
D. √81
E. √121
OA=D
- by hazelnut01
Fri May 19, 2017 12:03 am- Forum: Problem Solving
- Topic: If x > 0, the value of 6√x - x – 8 is greatest when x
- Replies: 1
- Views: 1173
If x ≠-y, is (x-y)/(x+y) > 1? (1) x>0 (2) y<0
If x ≠-y, is (x-y)/(x+y) > 1?
(1) x>0
(2) y<0
Source : GMATPrep
OA=E
- by hazelnut01
Thu May 18, 2017 3:44 pm- Forum: Data Sufficiency
- Topic: If x ≠-y, is (x-y)/(x+y) > 1? (1) x>0 (2) y<0
- Replies: 2
- Views: 1333
- by hazelnut01
Thu May 18, 2017 3:30 pm- Forum: Data Sufficiency
- Topic: Is x+y < 1? 1. x < 8/9 2. y < 1/8
- Replies: 3
- Views: 1289
If a, b are integers, and (a−b ) 2 +8 b 2 =108 (a−b)2+8
If a, b are integers, and (a−b)^2+8b^2=108, what is the number of the ordered pairs (a,b)?
A. 2
B. 4
C. 6
D. 8
E. 10
Source : Math Revolution
OA=D
- by hazelnut01
Thu May 18, 2017 12:05 am- Forum: Problem Solving
- Topic: If a, b are integers, and (a−b ) 2 +8 b 2 =108 (a−b)2+8
- Replies: 2
- Views: 1350
To make lemonade, a recipe requires 4 lemons, 30 ounces of sugar, and 2 pints of water. One can squeeze out 0.4 cups of 5% citric acid from an average lemon. Marta does not have lemons, but wants to make lemonade from 4 cups of 12% citric acid. She has sugar and water in abundance. How much water w...
- by hazelnut01
Wed May 17, 2017 9:21 pm- Forum: Problem Solving
- Topic: Mixture problem
- Replies: 4
- Views: 2382
A dessert recipe calls for 50% melted chocolate and 50% rasp
A dessert recipe calls for 50% melted chocolate and 50% raspberry puree to make a particular sauce. A chef accidentally makes 15 cups of the sauce with 40% melted chocolate and 60% raspberry puree instead. How many cups of the sauce does he need to remove and replace with pure melted chocolate to ma...
- by hazelnut01
Wed May 17, 2017 9:03 pm- Forum: Problem Solving
- Topic: A dessert recipe calls for 50% melted chocolate and 50% rasp
- Replies: 6
- Views: 1707
- by hazelnut01
Wed May 17, 2017 3:26 pm- Forum: Suggestions and Feedback
- Topic: Delete post
- Replies: 7
- Views: 5872
If set B is a subset of Set A, how many elements are in set
If set B is a subset of Set A, how many elements are in set A?
(1) Set B has 14 elements
(2) Exactly 80% of the elements in set A are not in Set B
Source : GMATPREP
OA=C
- by hazelnut01
Tue May 16, 2017 11:24 pm- Forum: Data Sufficiency
- Topic: If set B is a subset of Set A, how many elements are in set
- Replies: 1
- Views: 905