99.6k views
5 votes
A bag contians 5 blue and 8 red and 7 green marbels. A marble is selacted at random. Find the propobility the marbelis not red.

User Sangony
by
4.8k points

2 Answers

2 votes

Answer:

33%

Explanation:

This is because there are three different types and 33 x 3 = 99 and that is close to 100%.

User Aren Li
by
5.1k points
1 vote

Total number of marbles = 5 + 8 + 7 = 20

Total number of non-red marbles = 5 + 7 = 12

P(not red) = 12/20 = 3/5

-

Answer: 3/5

User Mohit Lakhanpal
by
5.2k points