Question

a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it and choose again. what is P(red, then blue)?

A. 77/164
B. 19/41
C. 90/1681
D. 45/41

Im kinda confused but i think its B

7 years ago