In a lottery game, a single ball is drawn at random from a container that contains 25 identical balls numbered from 1 through 25. find the probability that the number drawn is even or a multiple of 12.

Question

Mathematics

Pugsley

19 April, 20:58

In a lottery game, a single ball is drawn at random from a container that contains 25 identical balls numbered from 1 through 25. find the probability that the number drawn is even or a multiple of 12.

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Answers (1)

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Corinne Villanueva · Answer 1

Count the even numbers from 1 to 25. (2,4,6,8,10,12,14,16,18,20,22,24) 12 of them

Count the numbers that are a multiple of 12 (12, 24) 2 of them

Count the numbers in both groups: (12, 24). 2 of them.

So then,

P = (12+2 - 2) / 25 = 0.48 (answer)