Question

A bag contains 20 marbles, four are red, five are green, three are yellow, and eight are blue. If you choosetwo marbles, replacing the first one after you draw it, what is the probability of you choosing a red and then ablue marble?

Answer 1

Given:

A bag contains 20 marbles.

4 are red

5 are green

3 are yellow

8 are blue

We will find the probability of choosing a red marble then a blue marble with replacing the first one after you draw it.

First, the probability of choosing a red marble = 4/20

Second, the probability of choosing a blue marble = 8/20

So, the overall probability =

`(4)/(20)*(8)/(20)=(2)/(25)`

So, the answer will be the probability = 2/25