Search found 21 matches
Probability Problem
How to solve this problem quickly? I need more than 5 mins to get the answer. A long calculation.... :-( Source: MGMAT Bill and Jane play a simple game involving two fair dice, each of which has six sides numbered from 1 to 6 (with an equal chance of landing on any side). Bill rolls the dice and his...
- by yuliawati
Wed Oct 27, 2010 10:26 pm- Forum: Problem Solving
- Topic: Probability Problem
- Replies: 6
- Views: 3688
I usually solve the statistical problem by picking number.*this approach does work for me. For this case, let we jot down the premises. 1. In 1984, network television commercials accounted for 80% of all network and non-network television advertising revenue. 2. In 2004, that figure was 60%. 3. Oper...
- by yuliawati
Thu Oct 14, 2010 2:08 am- Forum: Critical Reasoning
- Topic: MGMAT CR Ed 4 - Chap.5 Problem#6: Network Television
- Replies: 7
- Views: 1925
I think the answer is D. 1. We need to calculate the total revenue (R). R= (Price of newspaper A*Number of sold of Newspaper A)+(Price of newspaper B*Number of sold of Newspaper B) = (1*P) + (1.25* (100-p)) -----> note: if p% of the newspapers that the store sold were copies of newspaper A, then (10...
- by yuliawati
Thu Oct 07, 2010 1:46 am- Forum: Problem Solving
- Topic: 700+ problem
- Replies: 5
- Views: 1454
You can solve this problem by calculating the total numbers of committe that includes married couple. Lets say the committee is AAC (AA represents a couple, and C represents the third person in the committe). 1. Total numbers of ways to select the committee = 10C3 (5 couples = 10 person) = 120. 2. T...
- by yuliawati
Wed Oct 06, 2010 11:48 pm- Forum: Problem Solving
- Topic: Probability
- Replies: 7
- Views: 1497
What is the source? IMO: C Question: Area X > Area Y? or radius x > radius y? 1. The circumference of X>Z and the circumference of Z<Y. means 2*pi*rx > 2*pi*rz, 2*pi*rz < 2*pi*ry --> No information about the relationship between rx and ry. So, Not sufficient. 2. The difference between the longest ch...
- by yuliawati
Wed Oct 06, 2010 3:31 am- Forum: Data Sufficiency
- Topic: DS
- Replies: 2
- Views: 1136
Click and Tick
In the game Cako, a player is awarded one tick for every third Alb captured, and one click for every fourth Berk captured. The total score is equal to the product of clicks and ticks. If a player has a score of 77, how many Albs did he capture? (1) The difference between Albs captured and Berks capt...
- by yuliawati
Wed Oct 06, 2010 1:46 am- Forum: Data Sufficiency
- Topic: Click and Tick
- Replies: 3
- Views: 1809