# Math Help - propability question

1. ## propability question

Tim is the owner of bleckie investment and real estate company. The company recently purchased four tracts of land in Holly Farm Estates and and six tracts in Newburg woods. The tracts are all equally desirable and sell for about the same amount.

a. What is the probability that the next two tracts sold will be in Newburg Woods

I am guessing the answer is:

(0.5*0.4)+(0.5*0.3)

2. 3/5 * 5/9 = 15/45 = 3/9 = 1/3

3. Originally Posted by sean.1986
3/5 * 5/9 = 15/45 = 3/9 = 1/3
Just some explanation for the OP...

The probability of selling the 1st tract is 6 out of 10 since there are 6 tracts in Newburg woods and 10 overall. (6/10 = 3/5) The probability of selling the 2nd tract is 5 out of 9 since there are now 5 tracts in the woods, and 9 overall after the 1st was sold.

$\frac{6}{10}*\frac{5}{9} = \frac{30}{90} \Rightarrow \frac{1}{3}$