Probability Question 9
Question 9 - 2024 (31 Jan Shift 1)
Two marbles are drawn in succession from a box containing 10 red, 30 white, 20 blue and 15 orange marbles, with replacement being made after each drawing. Then the probability, that first drawn marble is red and second drawn marble is white, is
(1) $\frac{2}{25}$
(2) $\frac{4}{25}$
(3) $\frac{2}{3}$
(4) $\frac{4}{75}$
Show Answer
Answer (4)
Solution
Probability of drawing first red and then white
$=\frac{10}{75} \times \frac{30}{75}=\frac{4}{75}$
