Waec Mathematics Past Questions and Answers

Question 96:

• WAEC 1989

The angle of depression of a point on the ground from the top of a building is 20.3^o. If the foot of the building is 40m, calculate the height of the building, correct to one decimal place

A. 37.5m
B. 28.1m
C. 27.8m
D. 14.8m
E. 13.9m

Question 97:

• WAEC 1989

Solve for x: (x² + 2x + 1) = 25

A. -6, -4
B. 6, -4
C. 6, 4
D. -6, 4
E. 5, 5

Question 98:

• WAEC 1989

Given that logp = 2 logx + 3logq, which of the following expresses p in terms of x and q?

A. P = 5xq
B. P = 6xq
C. P = x² + q³
D. P = 2x + 3q
E. P = x²q³

Question 99:

• WAEC 1989

sinθ = ¹/₂ and cosθ = -√3/2, what is the value of θ?

A. 30 ⁰
B. 60 ⁰
C. 90 ^o
D. 120 ^o
E. 150 ^o

Question 100:

• WAEC 1989

What is the probability that 3 customers waiting in a bank will be served in the sequence of their arrival at the bank

A. 1/6
B. 1/3
C. 1/2
D. 2/3
E. 5/6