SOLUTION: A number is picked from (1,2_,_,_,_,_10). What is the probability that the number is (a) prime number (b) Even number (c) more than four (d) a factor of 15 (e) multiple of three

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: A number is picked from (1,2_,_,_,_,_10). What is the probability that the number is (a) prime number (b) Even number (c) more than four (d) a factor of 15 (e) multiple of three      Log On


   

Question 1194286: A number is picked from (1,2_,_,_,_,_10). What is the probability that the number is
(a) prime number (b) Even number (c) more than four (d) a factor of 15 (e) multiple of three
Answer by Boreal(15235) About Me  (Show Source):
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prime numbers are 2,3, 5, and 7, so that probability is 4/10 or 2/5
more than 4 is 6/10 or 3/5
a factor of 15 includes 3 and 5, so that is 2/10 or 1/5
multiple of 3 includes 3,6,9, so that is 3/10.