Question

A bag contains 3 red marbles, 2 blue marbles and 5 green marbles. What is the probability of selecting a blue marble, replacing it in the bag and then selecting a green marble?
A. 7/10
B. 4/5
C. 3/20
D. 1/10

Answer 1

I got 1/10 can someone confirm?

Answer 2

If you replace the marble inside the bag, then the total number of marbles remains the same.

(2/10) * (5/10)
==> 10/100

Answer 3

1/10 * 1/10 = 1/10

Answer 4

Thanks!

Answer 5

\[\frac{ 10 }{ 100 }\] is the same as \[\frac{ 1 }{ 10 }\]