Question

A bag contains six white marbles and four black marbles a marble is drawn from the bag and then a second marble is drawn without replacing the first one. what is the probability of drawing a white marble on the first draw polo buy a black marble on the second?

Answer 1

4/15

Explanation:

Total event: 6+4=10

First draw: 6 white out of 10 marbles 6/10

2nd draw: 4 black out of 9 marbles 4/9

probability of drawing a white marble on the first draw polo buy a black marble on the second: 6/10 x 4/9 = 4/15