Sign in
Please select an account to continue using cracku.in
↓ →
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
Total marbles = 10+30+20+15=75. P(red)=10/75=2/15. P(white)=30/75=6/15=2/5.
With replacement: P = $$\frac{2}{15}\times\frac{2}{5}=\frac{4}{75}$$.
The answer is Option (4): $$\frac{4}{75}$$.
Create a FREE account and get:
Educational materials for JEE preparation