SOLUTION: A number is chosen at random from the whole numbers 11 through 30. How many outcomes are in teh event choose a perfect square or a multiple of 9 or a prime number?

Question 577288: A number is chosen at random from the whole numbers 11 through 30. How many outcomes are in teh event choose a perfect square or a multiple of 9 or a prime number?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
There are 20 numbers in 11 - 30
(1) There are 2 perfect squares, 16 and 25,
2/20 are perfect squares
(2) There are 2 multiples of 9, 18, and 27
2/20 are multiples of 9
(3) The primes are 11,13,17,19,23, and 29
6/20 are primes
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