Mathematics 2007 Waec Past Questions and Answers

Question 11 :

• WAEC 2007

For what value of x is the expression \(\frac{2x-1}{x+3}\)not defined?

A. 3
B. 2
C. 1/2
D. -3

Question 12 :

• WAEC 2007

If x =3, y = 2 and z = 4 what is the value of \(3x^{2}-2y+z\)

A. 17
B. 27
C. 35
D. 71

Question 13 :

• WAEC 2007

Solve the simultaneous equation: x+y=2 and 3x-2y=1

A. X=2 and y=1
B. X=1 and y=1
C. X=1 and y=2
D. X=-1 and y=1

Question 14 :

• WAEC 2007

If \(8^{x+1}=\frac{1}{4}\), find x

A. \(-\frac{5}{3}\)
B. -1
C. \(-\frac{1}{3}\)
D. \(\frac{1}{3}\)

Question 15 :

• WAEC 2007

The area of a square field is 110.25m². Find the cost of fencing it round at N75.00 per meter square

A. N1,575.00
B. N3,150.00
C. N4,734.30
D. N8,268.75