# Probability that a randomly chosen two digit positive integer is divisible by 3 or 5.

• Jun 1st 2010, 03:39 AM
acevipa
Probability that a randomly chosen two digit positive integer is divisible by 3 or 5.
What is the probability that a randomly chosen two digit positive integer is divisible by 3 or 5.
• Jun 1st 2010, 03:44 AM
Isomorphism
Can you answer these questions:

1) How many two digit positive integers are divisible by 3 or 5?
Say the answer is A.

2) How many two digit positive integers are there?
Say the answer is B.

Then the probability is $\frac{A}{B}$.
• Jun 1st 2010, 03:49 AM
acevipa
Quote:

Originally Posted by Isomorphism
Can you answer these questions:

1) How many two digit positive integers are divisible by 3 or 5?
Say the answer is A.

2) How many two digit positive integers are there?
Say the answer is B.

Then the probability is $\frac{A}{B}$.

Thanks for that