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Ahmed MS wrote:Determine whether the following expression is POSITIVE, NEGATIVE or CANNOT BE DETERMINED with numerical examples!
Q: (-X) / (-Y)(-Z), given that xyz > 0
IS is NEGATIVE, but I have come up with CANNOT BE DETERMINED!
Please help me guys.
OA is Negative! Beg your pardon!
- by Ahmed MS
Tue Oct 25, 2011 10:41 pm- Forum: Problem Solving
- Topic: Number Properties!
- Replies: 3
- Views: 892
Number Properties!
Determine whether the following expression is POSITIVE, NEGATIVE or CANNOT BE DETERMINED with numerical examples!
Q: (-X) / (-Y)(-Z), given that xyz > 0
IS is NEGATIVE, but I have come up with CANNOT BE DETERMINED!
Please help me guys.
- by Ahmed MS
Tue Oct 25, 2011 10:38 pm- Forum: Problem Solving
- Topic: Number Properties!
- Replies: 3
- Views: 892
- by Ahmed MS
Mon Oct 24, 2011 6:45 pm- Forum: Problem Solving
- Topic: Word Problem!
- Replies: 6
- Views: 1393
Word Problem!
Q: An eccentric casino owner decides that his casino should only use chips in $5 and $7 denominations. Which of the following amount cannot be paid out using these chips?
A. $31
B. $29
C. $26
D. $23
E. $21
OA is D, but I am looking for some easiest and fastest technique. Please help!
Cheers!
- by Ahmed MS
Mon Oct 24, 2011 5:45 pm- Forum: Problem Solving
- Topic: Word Problem!
- Replies: 6
- Views: 1393
Word Problems definitely come up on the GMAT. You might want to spend some time looking at Translation tables and refreshing on the key phrases (i.e. "less than", "is the equivalent of", "the sum of", etc.) The small has an area of 100, and costs $10. The larger has an...
- by Ahmed MS
Mon Oct 24, 2011 5:24 pm- Forum: Problem Solving
- Topic: Word Translation!
- Replies: 4
- Views: 1083
Word Translation!
Q: Pizza Inn. sells two sizes of square pizza: a small pizza that measures 10 inches on a side and cost $10, and a large pizza that measures 15 inches on a side costs $20. If two friends go there with $30 apiece, how many more square inches of pizza they can buy if they pool their money than if they...
- by Ahmed MS
Mon Oct 24, 2011 8:29 am- Forum: Problem Solving
- Topic: Word Translation!
- Replies: 4
- Views: 1083
- by Ahmed MS
Sun Oct 23, 2011 6:00 am- Forum: Problem Solving
- Topic: Combination!
- Replies: 3
- Views: 1378
Combination!
Q: If 3 of 7 standby passengers are selected for a flight, how many different combinations of standby passengers can be selected?
My answer is 210 (7! / 4!), however the book says 35.
Can anyone help me, please!
Cheers!
- by Ahmed MS
Sun Oct 23, 2011 5:09 am- Forum: Problem Solving
- Topic: Combination!
- Replies: 3
- Views: 1378
- by Ahmed MS
Sat Oct 22, 2011 5:23 am- Forum: Problem Solving
- Topic: VIC problem!
- Replies: 3
- Views: 1297
VIC problem!
Q: If a, b and c are greater than 0 and 'a' is twice as large as 'b' percent of 'c', then in terms of 'b' and 'c', what is 'a' percent of 'c'?
A. 2bc / 100
B. 2bc^2/1000
C. bc^2/5000
D. b^2c/5000
The answer is given C. Can anyone explain how?
Cheers!
- by Ahmed MS
Sat Oct 22, 2011 4:18 am- Forum: Problem Solving
- Topic: VIC problem!
- Replies: 3
- Views: 1297
- by Ahmed MS
Sat Oct 22, 2011 12:05 am- Forum: Problem Solving
- Topic: MGMAT, Inequalities!
- Replies: 3
- Views: 935
- by Ahmed MS
Sat Oct 22, 2011 12:03 am- Forum: Problem Solving
- Topic: MGMAT, Inequalities!
- Replies: 3
- Views: 935
MGMAT, Inequalities!
Q: If x>y, x<6, and y>-3, what is the largest prime number that could be equal to x+y? ( source: Manhattan equation, chapter 12 problem set).
The answer is 11 but I failed to understand the explanation, please help.
- by Ahmed MS
Fri Oct 21, 2011 11:32 pm- Forum: Problem Solving
- Topic: MGMAT, Inequalities!
- Replies: 3
- Views: 935
- by Ahmed MS
Thu Oct 20, 2011 9:38 pm- Forum: Problem Solving
- Topic: Function problem set!
- Replies: 3
- Views: 1516
Function problem set!
If the function Q is defined by the formula Q=5w/4xz^2, by what factor will Q be multiplied if w is quadrupled, x is doubled, and z is tripled?
The answer is given in Manhattan Review but failed to understand. Please help!
- by Ahmed MS
Thu Oct 20, 2011 7:00 pm- Forum: Problem Solving
- Topic: Function problem set!
- Replies: 3
- Views: 1516