What is the probability that a randomly chosen two digit positive integer is divisible by 3 or 5.

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- Jun 1st 2010, 02:39 AMacevipaProbability 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, 02:44 AMIsomorphism
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 $\displaystyle \frac{A}{B}$. - Jun 1st 2010, 02:49 AMacevipa