JAMB Mathematics 2023 Objective — Question 33

Question 33 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Given the sets X={1,2,3,4} and Y={2,3,5,9}. If a number is selected at random from set Y, what is the probability that the number is prime?

• A. 3/8
• B. 3/4Correct
• C. 2/3
• D. 3/5

Explanation

Prime numbers in Y are 2,3,5 (3 out of 4). Probability=3/4.

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