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If one number is selected at random from set A, and one number is selected at random from set B, what is the probability

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A

B

C

D

E

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Source: Magoosh

A: {71, 73, 79, 83, 87}
B: {57, 59, 61, 67}

If one number is selected at random from set A, and one number is selected at random from set B, what is the probability that both numbers are prime?

A. \(\dfrac{9}{20}\)

B. \(\dfrac{3}{5}\)

C. \(\dfrac{3}{4}\)

D. \(\dfrac{4}{5}\)

E. \(1\)

The OA is B
Source: — Problem Solving |