A box contains 12 identical balls of which 5 are red, 4 blue, and the...

WAEC 2020

A box contains 12 identical balls of which 5 are red, 4 blue, and the rest are green. If two balls are selected at random one after the other with replacement, what is the probability that both are red?

A. \(\frac{25}{144}\)
B. \(\frac{5}{33}\)
C. \(\frac{5}{6}\)
D. \(\frac{103}{132}\)

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Correct Answer: Option A

Explanation

Pr(RR) = \(\frac{5}{12}\) = \(\frac{5}{12} \times \frac{5}{12} = \frac{25}{144}\)

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A box contains 12 identical balls of which 5 are red, 4 blue, and the...

Correct Answer: Option A

Explanation

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