Search found 8 matches


Nice Question

In an office that employees 120 people, m% of the employees are male, and c% of the employees are members of the custodial staff. How many employees are females who are not members of the custodial staff? 1) m + c = 50 2) The number of female employees who are members of the custodial staff is four ...

by chrisjim5

Tue Oct 26, 2010 12:57 pm
Forum: Data Sufficiency
Topic: Nice Question
Replies: 4
Views: 1399

Probability Question

In a room filled with 7 people, 4 people have exactly 1 sibling in the room and 3 people have exactly 2 siblings in the room. If two individuals are selected from the room at random, what is the probability that those two individuals are NOT siblings?

Can you please provide an answer to this?

by chrisjim5

Sun Oct 24, 2010 8:56 am
Forum: Problem Solving
Topic: Probability Question
Replies: 3
Views: 1320

Terminating Decimals

Here is a question: Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 36, 0.72, and 3.005 are terminating decimals. If a, b, c, d and e are non-negative integers and p = 2^a*3^b and q = 2^c*3^d*5^e, is p/q a terminating decimal? (1) a > c (2) b > d Ca...

by chrisjim5

Thu Oct 21, 2010 11:02 am
Forum: Data Sufficiency
Topic: Terminating Decimals
Replies: 18
Views: 23024

Thanks guys ...

"Equally likely" outcomes make sense ...

by chrisjim5

Mon Oct 18, 2010 10:41 am
Forum: Problem Solving
Topic: Total Outcomes in Probability
Replies: 3
Views: 941

Total Outcomes in Probability

On one side of a coin there is the number 0 and on the other side the number 1. What is the probability that the sum of three coin tosses will be 2?

Should we have 8 outcomes here or 4 since the sum can only be 0, 1, 2 or 3?

Thank you ...

by chrisjim5

Mon Oct 18, 2010 9:06 am
Forum: Problem Solving
Topic: Total Outcomes in Probability
Replies: 3
Views: 941

Thats right ...

Thanks for explaining ...

by chrisjim5

Mon Oct 18, 2010 7:20 am
Forum: Problem Solving
Topic: Probability Question
Replies: 9
Views: 1565

Probability Question

Here is a question:

The employees of a certain company include exactly 4 men and 4 women. If 5 employees are to be selected at random, what is the probability that all of the women are selected?

Please let me know how to solve this ...

Thanks ...

by chrisjim5

Mon Oct 18, 2010 6:48 am
Forum: Problem Solving
Topic: Probability Question
Replies: 9
Views: 1565

Check this out please ...

In the game of Dubblefud, red chips, blue chips and green chips are each worth 2, 4 and 5 points respectively. In a certain selection of chips, the product of the point values of the chips is 16,000. If the number of blue chips in this selection equals the number of green chips, how many red chips a...

by chrisjim5

Sat Oct 09, 2010 10:25 am
Forum: Problem Solving
Topic: Check this out please ...
Replies: 2
Views: 1188