Free Practice Question
PS · Problem Solving
655-705
Probability
Consider three distinct numbers: x, y, and z. If x is selected randomly from the set {6, 7, 8, 9, 10} and both y and z are selected from the set {19, 20, 21, 22}, what is the probability that x and y are prime while z is not?
Answer Choices
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1/5
B
1/4
C
1/10
D
1/20
E
3/20
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Explanation
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Difficulty
655-705
Type
PS
Category