In a bag of keys, there are 15 silver keys, 5 black keys, 11 copper keys, and 4 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?

Question

Mathematics

Braeden Stout

31 January, 20:15

In a bag of keys, there are 15 silver keys, 5 black keys, 11 copper keys, and 4 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?

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Answers (2)

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Ada Weber · Answer 1

There is a 74% chance that the key drawn will be silver or copper.

I got this because I added all of them and got a total of 35 and then I took the total of silver and copper keys being, 26 and I divided 26 from 35 and got 74%

Ava · Answer 2

15 silver keys,

5 black keys,

11 copper keys,

4 painted

35 total

15 + 11 = 26

26/35 = 0.7428 ≈ 74.28% probability