Question

There are $2$ red balls and $3$ blue balls and $5$ green balls in a bag. If a ball is drawn at a time, find the probability that it is a blue or green ball.

• A. $1/2$
• B. $8/10$
• C. $7/10$
• D. $1/10$

Answer 1

Answer: (B)

$8/10$

Total number of balls $=2+3+5=10$

Number of blue and green balls$=3+5=8$

$P\left(A\right)=\frac{Numberoffavorableoutcomes}{TotalNumberofpossibleoutcomes}$

$\therefore P\left(A\right)=\frac{8}{10}$