Jamb Mathematics 2004 Past Questions and Answers

Question 16:

• JAMB 2004

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 17:

• JAMB 2004

find the mean deviation of 1, 2, 3 and 4

A. 2.5
B. 2.0
C. 1.0
D. 1.5

Question 18:

• JAMB 2004

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

Question 19:

• JAMB 2004

The pie chart above shows the distribution of the crops harvested from a farmland in a year. If 3000 tonnes of millet is harvested, what amount of beans is harvested

A. 6000 tonnes
B. 1500 tonnes
C. 1200 tonnes
D. 9000 tonnes

Question 20:

• JAMB 2004

In how many ways can 2 students be selected from a group of 5 students in a debating competition?

A. 25 ways
B. 10 ways
C. 15 ways
D. 20 ways