Search found 7 matches
- by [email protected]
Tue Nov 13, 2012 7:28 pm- Forum: Critical Reasoning
- Topic: Philosopher of Science
- Replies: 4
- Views: 2806
Hi, I got the same solution for question B. 0, - sq rt 3, + sq rt 3. But the offical explanation says it's "3". Might be a mistake? Nonetheless, I understand why C is the solution -- since "0" is common to both a) and b).
- by [email protected]
Mon Oct 29, 2012 8:44 am- Forum: Data Sufficiency
- Topic: GMATFOCUS: Is it true that x>0?
- Replies: 3
- Views: 3666
- by [email protected]
Tue Oct 09, 2012 1:23 pm- Forum: I just Beat The GMAT!
- Topic: 710 in less than 2 months
- Replies: 7
- Views: 4266
- by [email protected]
Tue Oct 09, 2012 9:48 am- Forum: I just Beat The GMAT!
- Topic: 710 in less than 2 months
- Replies: 7
- Views: 4266
Just wanted to expand the universe of coin-flip questions by adding the following scenario: "Find the probability that on five coin tosses we would get three heads and two tails" (Source: MGMAT).
P(3H and 2T) = [5!/3!*2!] / 2^5 = 10/32 = 5/16
- by [email protected]
Thu Oct 04, 2012 11:43 am- Forum: GMAT Math
- Topic: Coin flip questions made easy
- Replies: 69
- Views: 137539
- by [email protected]
Tue Oct 02, 2012 6:32 pm- Forum: Data Sufficiency
- Topic: is 0 an even integer?
- Replies: 13
- Views: 45182
- by [email protected]
Tue Oct 02, 2012 12:46 pm- Forum: Data Sufficiency
- Topic: x and y are integers and x>0 is y>0?
- Replies: 5
- Views: 2938