Search found 87 matches
I think there's an error on the answer choices.
4X + 5X = 9X
5X + 6X = 11X
THEN: 11X - 9X = 19
X = 9.5
Then at least there should be 9 * 9.5 = 85.5 = 86 students at least initially.
- by Fab
Wed Jan 28, 2009 11:27 am- Forum: Problem Solving
- Topic: Ratios - marching band
- Replies: 9
- Views: 2078
- by Fab
Fri Nov 28, 2008 5:46 am- Forum: Data Sufficiency
- Topic: Absolut
- Replies: 4
- Views: 1369
- by Fab
Tue Nov 25, 2008 4:23 pm- Forum: Problem Solving
- Topic: ??????
- Replies: 3
- Views: 1761
??????
Q25:
If the number 52,1n9, where n represents the tens digit, is a multiple of 3, then the value of n could be which of the following?
A. 6
B. 5
C. 3
D. 1
E. 0
- by Fab
Tue Nov 25, 2008 4:04 pm- Forum: Problem Solving
- Topic: ??????
- Replies: 3
- Views: 1761
Algebra
Q11: A certain business produced x rakes each month form November through February and shipped x/2 rakes at the beginning of each month from March through October. The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.10 per rake each month ...
- by Fab
Tue Nov 25, 2008 8:36 am- Forum: Problem Solving
- Topic: Algebra
- Replies: 2
- Views: 1411
Are you sure??Second statement: CD+DE = radius of larger circle; 2 (CD+DE)-DE = AD = diameter of smaller circle. So we have the radii of both circles again. Sufficient
Isn't it CD + DE - DE = CD?
- by Fab
Tue Nov 25, 2008 6:13 am- Forum: Data Sufficiency
- Topic: tricky geometry
- Replies: 9
- Views: 2142
AVERAGE
Q2: What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y? (1) The average height of the students in class X is 120 centimeters. (2) The average height of the students in class X and class Y combined is 126 centimeters. A. State...
- by Fab
Mon Nov 24, 2008 4:14 pm- Forum: Data Sufficiency
- Topic: AVERAGE
- Replies: 6
- Views: 7460
- by Fab
Mon Nov 24, 2008 6:53 am- Forum: Problem Solving
- Topic: If n is an integer greater than 6 + divisibility question
- Replies: 29
- Views: 18701
If it's 8...C works...@ Fab
You can also plug in 7 and 8 as 'n' in each of the options. Only option A will work.
- by Fab
Mon Nov 24, 2008 6:15 am- Forum: Problem Solving
- Topic: If n is an integer greater than 6 + divisibility question
- Replies: 29
- Views: 18701
- by Fab
Sun Nov 23, 2008 3:59 pm- Forum: Problem Solving
- Topic: If n is an integer greater than 6 + divisibility question
- Replies: 29
- Views: 18701
FAST APPROACH NEEDED...
Q31: A solid yellow stripe is to be painted in the middle of a certain highway. If 1 gallon of paint covers an area of p square feet of highway, how many gallons of paint will be needed to paint a stripe t inches wide on a stretch of highway m miles long? (1 mile = 5,280 feet and 1 foot = 12 inches)...
- by Fab
Sun Nov 23, 2008 3:07 pm- Forum: Problem Solving
- Topic: FAST APPROACH NEEDED...
- Replies: 1
- Views: 2340
- by Fab
Sun Nov 23, 2008 1:52 pm- Forum: Sentence Correction
- Topic: Shrimp
- Replies: 9
- Views: 2131
- by Fab
Sat Nov 22, 2008 4:43 pm- Forum: Problem Solving
- Topic: Easy but funny
- Replies: 2
- Views: 1324
- by Fab
Sat Nov 22, 2008 3:47 pm- Forum: Problem Solving
- Topic: Easy but funny
- Replies: 2
- Views: 1324
- by Fab
Fri Nov 21, 2008 2:32 pm- Forum: Sentence Correction
- Topic: astronomers
- Replies: 18
- Views: 4327