Search found 11 matches
mixture hard problem
5. A mixture of 12 ounces of vinegar and oil is 40%n vinegar by weight. How many ounces of oil must be added to the mixtue to produce a new mixture that is only 25% vinegar?
answer?
I dont know the answer but I Came up with 20?
Pls help
- by cmal
Sun Oct 30, 2011 10:30 pm- Forum: Problem Solving
- Topic: mixture hard problem
- Replies: 8
- Views: 15733
Hey wouldnt this be something like this
15 points in total =9+6
15c3=455
if they are straight lines on the y axis or x-axis
hence
15c3-(9-6)?
=440
so i would pick B
- by cmal
Mon Oct 17, 2011 1:18 am- Forum: Problem Solving
- Topic: Counting....Right Triangles
- Replies: 3
- Views: 1492
For Question on Triangles
Perimeter = 16 +16sqrt2
Let one side of triangle be =x
For Isoless Triangle hypothesis is always equal to y=xsqrt2
hence perimeter
= x+x+y
=2x+xsqrt2=16+16sqrt2
solving equation gives x=11.32 and y=16
- by cmal
Mon Oct 17, 2011 1:00 am- Forum: Problem Solving
- Topic: Gmat prep test #1 questions
- Replies: 3
- Views: 1986
A Few Hard Standard Deviation Math Questions
1.Given A = {6, 6, 9,10,14,15} B = {7, 9,10,11,14, 15} Col A: Standard deviation of A Col B: Standard deviation in B 2.Col A: Standard deviation of 50, 60, 70, 80 & 90 Col B: Standard deviation of 50, 55, 70, 85 & 90. Answer B Is the highest range equal to the highest Standard Deviation? Is ...
- by cmal
Fri Oct 14, 2011 2:12 am- Forum: Problem Solving
- Topic: A Few Hard Standard Deviation Math Questions
- Replies: 2
- Views: 8966
Hardest standard Deviation question
At Capetown college out of the 400 students taking Psychology 101 received an average score of 76 on the final exam, and the scores had a normal distribution. The bottom 16 percent of scores will receive a failing grade. If 8 students receive a score of 97 or higher, what is the score at or below wh...
- by cmal
Thu Oct 13, 2011 7:59 pm- Forum: Problem Solving
- Topic: Hardest standard Deviation question
- Replies: 1
- Views: 1778
word count for essay
Hi
whats the word count for essay - i.e the personal statement ?
I know it is different for different school but whats the general word count for personal essay not for the specific questions.
thanks
- by cmal
Fri Oct 29, 2010 3:14 am- Forum: Research MBA Programs
- Topic: word count for essay
- Replies: 1
- Views: 2062
pROBABLITY REALLY HARD
Flowering Plants Sold by Plant Nursery A Annuals (total 381) Perennials (total 132) Light Requirement Full Sun 268 75 Part Sun 87 45 Full Shade 26 12 Uses Beds 120 33 Borders 109 51 Container 80 30 Cut Flowers 54 12 Dried Flowers 11 6 Trellis or Lattice 7 0 Flower Color Black 1 1 Blue 22 10 Brown 14...
- by cmal
Fri Oct 29, 2010 3:11 am- Forum: Problem Solving
- Topic: pROBABLITY REALLY HARD
- Replies: 2
- Views: 2644
- by cmal
Wed Sep 29, 2010 12:42 am- Forum: Problem Solving
- Topic: Combination and permutation questions
- Replies: 7
- Views: 1630
- by cmal
Wed Sep 29, 2010 12:35 am- Forum: Problem Solving
- Topic: QUESTION
- Replies: 5
- Views: 1808
QUESTION
q1) there are 2 sections in a question paper. in the first section 3 questions have to be attempted out of 4 AND IN the second one 4 out of 5. In the 2nd section the first two questions are complusory. how many choices can a student make. q2) there are 2 sections in a question paper. in the first se...
- by cmal
Tue Sep 28, 2010 1:25 am- Forum: Problem Solving
- Topic: QUESTION
- Replies: 5
- Views: 1808
Combination and permutation questions
q1. in how many ways can a team of 11 players be selcted out of 16 including 2 particular players.?
q2. in how many ways can a team of 11 players be selcted out of 16 excluding 2 particular players.?
- by cmal
Tue Sep 28, 2010 1:20 am- Forum: Problem Solving
- Topic: Combination and permutation questions
- Replies: 7
- Views: 1630