In Lottery,there are 10 prizes and 25 blanks.A lottery is drawn at random.What is the Probability of getting a prize? Choose the correct answer:
A) 1 / 7
B) 2 / 7
C) 3 / 7
D) 4 / 7
E) 1

Rationale: total number of outcomes possible , n ( s ) = 10 + 25 = 35 . total number of prize , n ( e ) = 10 p ( e ) = n ( e ) / n ( s ) = 10 / 35 = 2 / 7 answer is option b
Answer: B