Question

In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

• A. $\frac{1}{10}$
• B. $\frac{2}{5}$
• C. $\frac{2}{7}$
• D. $\frac{5}{7}$

Answer 1

Answer: (C)

$\frac{2}{7}$

P(getting a prize) $=\frac{10}{(10+25)}=\frac{10}{35}=\frac{2}{7}$