Waec Mathematics Past Questions and Answers

Question 426:

• WAEC 1995

If R = [2, 4, 6, 7] and S = [1, 2, 4, 8], then R∪S equal

A. [1,2,4,6,7,8]
B. [1,2,4,7,8]
C. [1,4.7,8]
D. [2.6.7]
E. [2.4]

Question 427:

• WAEC 1995

Find the value(s) of x for which the expression is undefined: \(\frac{6x - 1}{x^2 + 4x - 5}\)

A. +4 or+1
B. -5 or +1
C. -5 or -1
D. +5 or -1
E. \(\frac{1}{6}\)

Question 428:

• WAEC 1995

Which of the following could be the inequality illustrated in the sketch graph above?

A. Y≥2x+3
B. Y≤-3x+3
C. Y < 3x+2
D. Y≤x +3
E. Y≥3x+2.

Question 429:

• WAEC 1995

Solve the inequality: \(\frac{1}{3}(2x - 1) < 5\)

A. X < - 5
B. X
C. X
D. X
E. X < 16

Question 430:

• WAEC 1995

What is the smaller value of x for which x\(^2\) - 3x + 2= 0?

A. 1
B. 2
C. 3
D. 4
E. 5