Question

In a lottery, there are 10 prizes and 20 blanks. What is the probability of getting a prize?​

Answer 1

Answer

1/3

Explanation

Total outcomes in a lottery ticket = 10 + 20 = 30

P (getting prize) = 10 / 30 = 1 / 3, So 1/3 is a correct answer.

Answer 2

Answer:

We know that total number of tickets= 30.

Number of lottery tickets having prize = 10 

Probability is given by,

$p(a) = \frac{no. \: of \: possible \: outcomes}{no. \: of \: total \: outcomes}$

Probability of getting a prized ticket 

= (number of prized tickets) / (total number of lottery tickets) 

$= \frac{10}{30} \\ \\ = \frac{1 \cancel0}{3 \cancel0} \\ \\ = \frac{1}{3}$

Hope it helps you from my side