Probability Ques 5
Question-
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
(1) $\frac{3}{4}$
(2) $\frac{4}{7}$
(3) $\frac{1}{8}$
(4) $\frac{3}{7}$
(5) $\frac{1}{4}$
(IBPS Bank PO/MT CWE-V Main Exam. 31.10.2015)
Show Answer
Correct Answer: (2)
Solution: (2)
Number of balls in the bag $=6+8=14$
Total possible outcomes $=$ Selection of 1 ball out of 14 balls $={ }^{14} C_{1}=14$
Total favourabe outcomes $=$ Selection of 1 ball out of 8 white balls $={ }^{8} C_{1}=8$
$\therefore$ Required probability $=\frac{8}{14}=\frac{4}{7}$
BETA
