Question

A bag contains 3 red marbles, 7 blue marbles and 4 green marbles. If

three marbles are drawn out of the bag, what is the probability, to the
nearest 10th of a percent, that all three marbles drawn will be blue?
Answer:
Submit Answer
PERSP
DIDY
attempt 2 out of 2

Answer 1

15%

Explanation:

The chance to get a blue marble at the start is 7/14 which is 50%

If you take out a blue marble, it becomes 6/14, then 5/14

5x6x7÷14=15 15%