Waec Mathematics Past Questions and Answers

Question 416:

• WAEC 1994

(a) Copy and complete the following table of values for \(y = 2x^{2} - 9x - 1\).

x	-1	0	1	2	3	4	5	6
y		-1	-8	-11				17

(b) Using a scale of 2cm to represent 1 unit on the x- axis and 2cm to represent 5 units on the y- axis, draw the graph of \(y = 2x^{2} - 9x - 1\).
(c) Use your graph to find the : (i) roots of the equation \(2x^{2} - 9x = 4\), correct to one decimal place ; (ii) gradient of the curve \(y = 2x^{2} - 9x - 1\) at x = 3.

Question 417:

• WAEC 1994

(a) The fourth term of an A.P is 37 and 6th term is 12 more than the fourth term . Find the first and seventh terms.
(b) If \(P = {1, 2, 3, 4}\) and \(Q = {3, 5, 6}\), find (i) \(P \cap Q\) ; (ii) \(P \cup Q\) ; (iii) \((P \cap Q) \cup Q\) ; (iv) \((P \cap Q) \cup P\).

Question 418:

• WAEC 1995

Find (101\(_2\))\(^2\), expressing the answer in base 2.

A. 10101
B. 11001
C. 10010
D. 11101
E. 10110

Question 419:

• WAEC 1995

Find (101\(_2\))\(^2\), expressing the answer in base 2.

A. 10101
B. 11001
C. 10010
D. 11101
E. 10110

Question 420:

• WAEC 1995

If three children shares N10.50 among themselves in ratio 6:7:8, how much is the largest share?

A. N3.00
B. N3.50
C. N4.00
D. N4.50
E. N5.00