- A
- B
- C
- D
Step-by-Step Solution
Round or triangular buttons = 7 + 5 = 12, total = 18. Probability = .
Answer: C)
A jar contains 18 buttons: 7 round, 6 square and 5 triangular.
One button is taken out at random.
What is the probability that it is either round or triangular?
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