Waec Mathematics 2008 Past Questions and Answers

Question 31:

• WAEC 2008

Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is selected at random from set B, what is the probability that the number is prime?

A. 1
B. \(\frac{3}{4}\)
C. \(\frac{1}{2}\)
D. \(\frac{1}{4}\)

Question 32:

• WAEC 2008

Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is picked at random from each of the two sets, what is the probability that their difference is odd?

A. 1
B. \(\frac{3}{4}\)
C. \(\frac{1}{4}\)
D. Zero

Question 33:

• WAEC 2008

Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is picked at random from each of the two sets, what is the probability that their difference is 6 or 7?

A. \(\frac{1}{256}\)
B. \(\frac{1}{16}\)
C. \(\frac{1}{8}\)
D. \(\frac{1}{2}\)

Question 34:

• WAEC 2008

Find the mean deviation of these numbers 10, 12, 14, 15, 17, 19.

A. 2.5
B. 2.6
C. 2.7
D. 2.8

Question 35:

• WAEC 2008

In the diagram, < QPR = 90^o. If q² = 25 - r². Find the value of p

A. 3
B. 4
C. 5
D. 6