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) 1/10 B) 2/5 C) 2/7 D) 5/7 E) 10/7
Total number of prizes and blanks= 10+25= 
<gadget id="calculator">10+25</gadget>
<output>35</output>
35   no.of prize in a lottery= 10   probability of one lottery is drawn = 10/35= 2/7   Answer is 2/7
<result>C</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?