Waec Mathematics 1998 Past Questions and Answers

Question 16:

• WAEC 1998

p and q are two positive numbers such that p > 2q. Which one of the following statements is not true?

A. -p < -2q
B. -p > -2q
C. -q < 2p
D. Q < 1/2p
E. P² > 2q²

Question 17:

• WAEC 1998

For what value of x is the expression
x - 5/x² - 2x - 3
not defined?

A. 3, 1
B. -1, -3
C. -1, 3
D. 3, -2
E. 1, -3

Question 18:

• WAEC 1998

Make S the subject of the formula: \(V = \frac{K}{\sqrt{T-S}}\)

A. \(T-\frac{K^2}{V^2} = S\)
B. \(T+\frac{K^2}{V^2} = S\)
C. \(T-\frac{K^2}{V} = S\)
D. \(T-\frac{K}{V} = S\)
E. \(T-\frac{K}{V^2} = S\)

Question 19:

• WAEC 1998

Find the equation whose roots are \(\frac{2}{3}and \frac{-1}{4}\)

A. \(12x^2+11x+2=0\)
B. \(12x^2-11x+2=0\)
C. \(x^2-\frac{11}{12}x+2=0\)
D. \(x^2+\frac{11}{12}x-2=0\)
E. \(12x^2+11x+2=0\)

Question 20:

• WAEC 1998

Find (X-Y) if 4x - 3y = 7 and 3x - 2y = 5

A. 4
B. 3
C. 2
D. -2
E. -3