Question

A bag contains $3$ red balls and $5$ black balls. A ball is drawn at random from the bag. Find the probability of red balls.

• A. $\frac{5}{8}$
• B. $\frac{3}{8}$
• C. $1$
• D. none

Answer 1

The correct option is B $\frac{3}{8}$

Given a bag contains 3 red balls and 5 black balls.

When a ball is picked at random , probability of red balls

= $\frac{Numberofredballs}{Totalnumberofballs}=\frac{3}{3+5}=\frac{3}{8}$