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Thursday, 11 June 2026
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Mathematics Past Questions and Answers

Topic: Probability

Jamb Mathematics Questions - Probability

Question 46:
The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both
  • A \( \frac{2}{15} \)
  • B \( \frac{3}{4} \)
  • C \( \frac{7}{15} \)
  • D \( \frac{1}{15} \)
View Answer & Explanation
Question 47:
The probability of an outcome A is 1/6 . The probability of the B outcome is 1/4 . If the probability of A or B or both is 1/12 . What is the probability of both outcomes A and B?
  • A 1/2
  • B 1/3
  • C 2/5
  • D 3/4
View Answer & Explanation
Question 48:
A crate of soft drinks contains 10 bottle of Coca-Cola 8 of Fanta and 6 of Sprite. If one bottle is selected at random, what is the probability that it is Not a Coca-Cola bottle?
  • A \(\frac{5}{12}\)
  • B \(\frac{1}{3}\)
  • C \(\frac{3}{4}\)
  • D \(\frac{7}{12}\)
View Answer & Explanation
Question 49:
Two numbers are removed at random from the numbers 1, 2, 3 and 4. What is the probability that the sum of the numbers removed is even?
  • A \(\frac{2}{3}\)
  • B \(\frac{1}{2}\)
  • C \(\frac{1}{3}\)
  • D \(\frac{1}{4}\)
View Answer & Explanation
Question 50:
If a fair coin is tossed twice, what is the probability of obtaining at least one head?
  • A 0.25
  • B 0.75
  • C 0.5
  • D 0.33
View Answer & Explanation