In a bag of keys, there are 12 silver keys, 5 black keys, 11 copper keys, and 2 painted keys of various colors. One key is drawn

Question

Verdich [7]

3 years ago

5

In a bag of keys, there are 12 silver keys, 5 black keys, 11 copper keys, and 2 painted keys of various colors. One key is drawn

out at random. What is the probability that the key that is drawn is silver or copper?

Mathematics

1 answer:

umka2103 [35] · Answer 1 · 2022-03-08T21:08:19+03:00

umka2103 [35]3 years ago

7 0

The total number of keys equals:
12 + 5 + 11 + 2 = 30 keys

The probability to pick a sliver key is:
12/30 = 2/5

The probability to pick a copper key is:
11/30

Hope that helps