A bag contains 4 red and 6 black balls. A ball is taken out of the bag at random. What is the probability of getting a black ball?
Question:
A bag contains 4 red and 6 black balls. A ball is taken out of the bag at random. What is the probability of getting a black ball?
(a) $\frac{2}{5}$
(b) $\frac{3}{5}$
(C) $\frac{1}{10}$
(d) none of these
Solution:
(b) $\frac{3}{5}$
Explanation:
Total possible outcomes = Total number of balls = ( 4 + 6) = 10
Number of black balls = 6
$\therefore P($ getting a black ball $)=\frac{6}{10}=\frac{3}{5}$