Waec Mathematics 1990 Past Questions and Answers

Question 46:

• WAEC 1990

The table shows that the amount of money (in naira)collected through voluntary donations in a secondary school.What is the median of distribution

A. N3.00
B. N9.00
C. N12.00
D. N15.00
E. N18.00

Question 47:

• WAEC 1990

Two groups of male students cast their votes on a particular proposal. The result are as follows:

	In favor	Against
Group A	128	32
Group B	96	48

If a student in favor of the proposal is selected for a post, what is the probability that he is from group A?

A. 8/19
B. 16/35
C. 10/19
D. 4/7
E. 4/5

Question 48:

• WAEC 1990

Two groups of male students cast their vote on a particular proposal. The results are as follows:

	In favor	Against
Group A	128	32
Group B	96	48

If a student is chosen at random, what is probability that he is against the proposal?

A. 3/19
B. 4/19
C. 5/19
D. 9/19
E. 10/19

Question 49:

• WAEC 1990

(a) Simplify \(\frac{0.016 \times 0.084}{0.48}\) [Leave your answer in standard form].
(b) Eight wooden poles are to be used for pillars and the lengths of the poles form an Arithmetic Progression (A.P). If the second pole is 2m and the sixth is 5m, give the lengths of the poles, in order.

Question 50:

• WAEC 1990

Show on a graph, the area which gives the solution set of the inequalities: \(y - 2x \leq 4 ; 3y + x \geq 6 ; y \geq 7x - 9\).