Search found 7 matches
IMO D. (D) Merchants in the locality responded to the local tax by reducing the price at which they sold cigarettes by 20 cents per pack ---> the 20 cents tax per pack was neutralized by price decrease ----> the only reason for the minor reduction in cigarettes smoking was "what was said in the...
- by salar_snake
Sun Dec 06, 2009 4:50 am- Forum: Critical Reasoning
- Topic: smoke
- Replies: 18
- Views: 4741
IMO E A obviously weakens the argument's conclusion: A: Most smaller manufacturers of laundry detergents will consider it too expensive to retool factories for the production of the smaller detergent packages. ----> manufacturers other than the big three are not going to switch to concentrated deter...
- by salar_snake
Sun Dec 06, 2009 4:43 am- Forum: Critical Reasoning
- Topic: Laundry Detergents
- Replies: 9
- Views: 2355
IMO 13: exactly 4 persons serve on 3 board each --> commons (A,B,C) =4 each pair of charities has 5 persons in common --> commons (A,B) = 5, commons (A,C) = 5, commons (B,C) = 5. distinct persons = n(A) + n(B) + n(C) - n[commons (A,B), commons (A,C), commons (B,C)] + n[commons(A,B,C)] = ---> 8 + 8 +...
- by salar_snake
Sun Dec 06, 2009 1:23 am- Forum: Problem Solving
- Topic: board of director
- Replies: 2
- Views: 1490
you can get the slope using this formula: (y2 - y1) / (x2 - x1 ) here, it equals: (k - 7) / (14 - (-4)) = (k-7)/18 but u want to get the slope without using k, so use another pair of point: (0,0) and (-4,7) which means the slope equals -7/4 and -7/4 = (k - 7)/18 ----> k = 98/ 4 = 24.5 also, since th...
- by salar_snake
Sat Nov 28, 2009 2:29 am- Forum: Problem Solving
- Topic: Line
- Replies: 4
- Views: 1423
This problem isn't that complicated, I mean one number is chosen from each set, right ? and we know that there are four combinations that add up to nine: (2,7), (3,6), (4,5), (5,4) [the first number is from set A and the second number is from set B] Does it matter which number we choose from set A ?...
- by salar_snake
Thu Nov 26, 2009 11:36 pm- Forum: Problem Solving
- Topic: Combinatorics Question Veritas
- Replies: 9
- Views: 1722
Suppose you have a 1000 students:
480 are males, 520 are females.
60% of males + 80% of female = number of student under 25 years old.
so 0.6(480) + 0.8(520) = 288 + 416 = 704
the probability = 704/1000
- by salar_snake
Wed Nov 25, 2009 2:33 am- Forum: Problem Solving
- Topic: graduating - male & female
- Replies: 2
- Views: 1335
How about this:
(1) choose 3 persons from the first 9 : 9C3 = 84
(2) choose another 3 persons from the remaining 6: 6C3 = 20
(3) only one other way to choose 3 people for the last group is left, so you can just:
1 * 20 * 84 = 1680
- by salar_snake
Sun Nov 22, 2009 8:56 am- Forum: Problem Solving
- Topic: Permutations/Combinations
- Replies: 13
- Views: 5718