Waec Mathematics 1990 Past Questions and Answers

Question 21:

• WAEC 1990

Factorize 2e\(^2\) - 3e + 1

A. (2e-1) (e-1)
B. (e+1) (2e+1)
C. (2e+3) (e+2)
D. (2e-3) (e-1)
E. (e²-3(2e-1)

Question 22:

• WAEC 1990

Solve the equation 7y\(^2\) = 3y

A. Y = 3 or 7
B. Y = 0 or 7
C. Y = 0 or 3/7
D. Y = 0 or 9
E. Y = 0 or 10

Question 23:

• WAEC 1990

Find the value of m which makes x\(^2\) + 8 + m a perfect square

A. 2
B. 4
C. 8
D. 12
E. 16

Question 24:

• WAEC 1990

Solve the equation 2a\(^2\) - 3a - 27 = 0

A. 3/2, 9
B. -2/3, 9
C. 3, 9/2
D. -3, -9/2
E. -3, 9/2

Question 25:

• WAEC 1990

A sector of a circle of radius 7cm has an area of 44cm². Calculate the angle of the sector correct to the nearest degree [Take π = 22/7]

A. 6^o
B. 26^o
C. 52^o
D. 103^o
E. 206^o