Waec Mathematics Past Questions and Answers

Question 86:

• WAEC 1989

With reference to the graph above, which f the following solution sets is represented by ΔOPQ?

A. Y ≥ x, y ≤ 0, y + x ≥ 7
B. Y ≤ x, y ≥ 0, y + x ≤ 7
C. Y ≥ x, y ≥ 0, y + x ≤ 7
D. Y ≤ x, y ≤ 0, y + x ≤ 7
E. Y ≤ x, y ≥ 0, y + x ≥ 7

Question 87:

• WAEC 1989

Find the volume of a cone of radius 3.5cm and vertical height 12cm [Take π = 22/7]

A. 3.4cm²
B. 15.5cm²
C. 21.0cm²
D. 42.0cm²
E. 154.0cm²

Question 88:

• WAEC 1989

The table above gives the scores of a group of students in an English Language test

If a student is chosen at random from the group, what is the probability that the scored at least 6 marks?

A. 3/20
B. 1/5
C. 1/4
D. 3/10
E. 3/4

Question 89:

• WAEC 1989

The angle of a sector of a circle of diameter 8cm [Take x = 22/7].

A. 9³/₇cm²
B. 12⁴/₇cm²
C. 18⁵/₇cm²
D. 25¹/₇cm²
E. 31³/₇cm²

Question 90:

• WAEC 1989

In the diagram above, O is the center of the circle QRT and PT is a tangent to the circle at T. Calculate the angle x

A. 55^o
B. 40^o
C. 35^o
D. 25^o
E. 20^o