In a lottery there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize? Pick one.
A) 1/5
B) 2/7
C) 2/5
D) 1/7
E) 3/5
total draws = prizes+blanks= 10+25= 
<gadget id="calculator">10+25</gadget>
<output>35</output>
35   probability of getting a prize= 10/35 = 2/7   correct option is 2/7
<result>B</result>
In a lottery there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?