Probability Ques 13
Question-
A number ’ $n$ ’ is selected randomly from a set of numbers $-1,2, 5 .$ Another number ’ $m$ ’ selected randomly from a set of numbers $-2,3,7$. What is the probability that product of $m$ and $n(mn)$ is less than 12 ?
(1) $\frac{2}{3}$
(2) $\frac{5}{9}$
(3) $\frac{1}{3}$
(4) $\frac{1}{8}$
(5) $\frac{1}{6}$
(Bank of Baroda PO Exam, 25.09.2016)
Show Answer
Correct Answer: (1)
Solution: (1)
Total possible outcomes $=3 \times 3=9$
Total favourable outcomes $\Rightarrow(5,3),(5,7),(2,7)=3$ Required probability $=1-\frac{3}{9}=\frac{2}{3}$
BETA
