Question

A bag contains 8 pink marbles, 5 green marbles and 10 brown marbles. What is the chance of drawing a green marble? If a green marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a brown marble? Give solutions exactly in reduced fraction form, separated by a comma.

Answer 1

green marbles/total marbles

Answer 2

for part 1

Answer 3

5/23

Answer 4

do the same for brown

Answer 5

because the green marble is being put back

Answer 6

10/23

Answer 7

ya