An adventure game has a number cube with 12 equal-size faces. Each face is labeled with a number from 1 to 12. What is the probability of rolling a 4 or a multiple of 5? Enter your answer as a fraction, in simplified form, in the box.
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Answer:
Probability of getting 4 or multiples of 5 = 1 / 4
Step-by-step explanation:
We know that
The multiples of 5 less then 12 are 5 and 10
So
There are 2 numbers which are multiples of 5
And 4 is also present in our desired even
Thus
Our desired even space contain member = 3
Total number in the whole space = 12
We know that
Probability of desired even = members in desired even space / total space
Therefore
Probability of getting 4 or multiples of 5 = 3 / 12 = 1 / 4
So
Probability of getting 4 or multiples of 5 = 1 / 4
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