Waec Mathematics Past Questions and Answers

Question 1791:

• WAEC 2018

Simplify; \(\frac{2 - 18m^2}{1 + 3m}\)

A. \(2 (1 + 3m)\)
B. \(2 (1 + 3m^2)\)
C. \(2(1 - 3m)\)
D. \(2(1 - 3m^2)\)

Question 1792:

• WAEC 2018

A curve is such that when y = 0, x = -2 or x = 3. Find the equation of the curve.

A. Y = \(x^2 - 5x - 6\)
B. Y = \(x^2 + 5x - 6\)
C. Y = \(x^2 + x - 6\)
D. Y = \(x^2 - x - 6\)

Question 1793:

• WAEC 2018

The volume of a cylindrical tank, 10m high is 385 m\(^2\). Find the diameter of the tank. [Take \(\pi = \frac{22}{7}\)]

A. 14m
B. 10m
C. 7m
D. 5m

Question 1794:

• WAEC 2018

The surface area of a sphere is \(\frac{792}{7} cm^2\). Find, correct to the nearest whole number, its volume. [Take \(\pi = \frac{22}{7}\)]

A. 113\(cm^3\)
B. 131\(cm^3\)
C. 311\(cm^3\)
D. 414\(cm^3\)

Question 1795:

• WAEC 2018

The angles of a polygon are x, 2x, 2x, (x + \(30^o\)), (x + \(20^o\)) and (x - \(10^o\)). Find the value of x

A. \(45^o\)
B. \(95^o\)
C. \(84^o\)
D. \(85^o\)