WAEC 2024 · Paper 1 · Q46

Probability

The probability that Amaka will pass an examination is $\frac37$ and that Bala will pass is $\frac49$ . Find the probability that both will pass the examination.

Worked solution (try it first)

Amaka's and Bala's results are independent.
For both to pass, multiply: $\frac37 \times \frac49 = \frac{12}{63}$ .
So the probability is $\frac{4}{21}$ , option B.

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