Probability Jamb Mathematics Past Questions
Question 6
In a class of 40 students, 32 offer mathematics, 24 offer Physics, and 4 offer neither Mathematics nor Physics. How many offer both Mat
ematics and Physics?
- A. 20
- B. 16
- C. 8
- D. 4
Question 7
On a pie chart, there are four sectors of which three angles are 45°, 90° and 135°. If the smallest sector represents N28.00, how much is the largest sector?
- A. N96.00
- B. N84.00
- C. N48.00
- D. N42.00
Question 8
A bag contains 5 blacks balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and red balls are picked?
- A. 15/28
- B. 13/28
- C. 5/14
- D. 3/14
Question 9
Some white balls put in a basket containing twelve red balls and sixteen black balls. If the probability of picking a white balls from the baskets is 3/7, how many white balls were introduced?
- A. 12
- B. 21
- C. 28
- D. 32
Question 10
An unbiased die is rolled 100 times and the outcome is tabulated above.
What is the probability of obtaining a 5?
- A. 1/5
- B. 1/2
- C. 1/6
- D. 1/4
