BECE Mathematics 2019 Paper

Concept:Probability is the ratio of favourable outcomes to total possible outcomes.A prime number is a number greater than $1$ that is divisible only by $1$ and itself.Explanation:The numbers from $25$ to $35$ are: $25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35$.So, the total number of possible outcomes is $11$.The prime numbers in this list are $29$ and $31$ only.Therefore, the number of favourable outcomes is $2$.Required probability $= \frac{\text{favourable outcomes}}{\text{total outcomes}} = \frac{2}{11}$.Answer:Option C: $\frac{2}{11}$